A Quick Guide to Receiving and Sending Bitcoin CoinCentral

How To End The Cryptocurrency Exchange "Wild West" Without Crippling Innovation


In case you haven't noticed the consultation paper, staff notice, and report on Quadriga, regulators are now clamping down on Canadian cryptocurrency exchanges. The OSC and other regulatory bodies are still interested in industry feedback. They have not put forward any official regulation yet. Below are some ideas/insights and a proposed framework.



Many of you have limited time to read the full proposal, so here are the highlights:

Offline Multi-Signature

Effective standards to prevent both internal and external theft. Exchange operators are trained and certified, and have a legal responsibility to users.

Regular Transparent Audits

Provides visibility to Canadians that their funds are fully backed on the exchange, while protecting privacy and sensitive platform information.

Insurance Requirements

Establishment of basic insurance standards/strategy, to expand over time. Removing risk to exchange users of any hot wallet theft.


Background and Justifications


Cold Storage Custody/Management
After reviewing close to 100 cases, all thefts tend to break down into more or less the same set of problems:
• Funds stored online or in a smart contract,
• Access controlled by one person or one system,
• 51% attacks (rare),
• Funds sent to the wrong address (also rare), or
• Some combination of the above.
For the first two cases, practical solutions exist and are widely implemented on exchanges already. Offline multi-signature solutions are already industry standard. No cases studied found an external theft or exit scam involving an offline multi-signature wallet implementation. Security can be further improved through minimum numbers of signatories, background checks, providing autonomy and legal protections to each signatory, establishing best practices, and a training/certification program.
The last two transaction risks occur more rarely, and have never resulted in a loss affecting the actual users of the exchange. In all cases to date where operators made the mistake, they've been fully covered by the exchange platforms.
• 51% attacks generally only occur on blockchains with less security. The most prominent cases have been Bitcoin Gold and Ethereum Classic. The simple solution is to enforce deposit limits and block delays such that a 51% attack is not cost-effective.
• The risk of transactions to incorrect addresses can be eliminated by a simple test transaction policy on large transactions. By sending a small amount of funds prior to any large withdrawals/transfers as a standard practice, the accuracy of the wallet address can be validated.
The proposal covers all loss cases and goes beyond, while avoiding significant additional costs, risks, and limitations which may be associated with other frameworks like SOC II.

On The Subject of Third Party Custodians
Many Canadian platforms are currently experimenting with third party custody. From the standpoint of the exchange operator, they can liberate themselves from some responsibility of custody, passing that off to someone else. For regulators, it puts crypto in similar categorization to oil, gold, and other commodities, with some common standards. Platform users would likely feel greater confidence if the custodian was a brand they recognized. If the custodian was knowledgeable and had a decent team that employed multi-sig, they could keep assets safe from internal theft. With the right protections in place, this could be a great solution for many exchanges, particularly those that lack the relevant experience or human resources for their own custody systems.
However, this system is vulnerable to anyone able to impersonate the exchange operators. You may have a situation where different employees who don't know each other that well are interacting between different companies (both the custodian and all their customers which presumably isn't just one exchange). A case study of what can go wrong in this type of environment might be Bitpay, where the CEO was tricked out of 5000 bitcoins over 3 separate payments by a series of emails sent legitimately from a breached computer of another company CEO. It's also still vulnerable to the platform being compromised, as in the really large $70M Bitfinex hack, where the third party Bitgo held one key in a multi-sig wallet. The hacker simply authorized the withdrawal using the same credentials as Bitfinex (requesting Bitgo to sign multiple withdrawal transactions). This succeeded even with the use of multi-sig and two heavily security-focused companies, due to the lack of human oversight (basically, hot wallet). Of course, you can learn from these cases and improve the security, but so can hackers improve their deception and at the end of the day, both of these would have been stopped by the much simpler solution of a qualified team who knew each other and employed multi-sig with properly protected keys. It's pretty hard to beat a human being who knows the business and the typical customer behaviour (or even knows their customers personally) at spotting fraud, and the proposed multi-sig means any hacker has to get through the scrutiny of 3 (or more) separate people, all of whom would have proper training including historical case studies.
There are strong arguments both for and against using use of third party custodians. The proposal sets mandatory minimum custody standards would apply regardless if the cold wallet signatories are exchange operators, independent custodians, or a mix of both.

On The Subject Of Insurance
ShakePay has taken the first steps into this new realm (congratulations). There is no question that crypto users could be better protected by the right insurance policies, and it certainly feels better to transact with insured platforms. The steps required to obtain insurance generally place attention in valuable security areas, and in this case included a review from CipherTrace. One of the key solutions in traditional finance comes from insurance from entities such as the CDIC.
However, historically, there wasn't found any actual insurance payout to any cryptocurrency exchange, and there are notable cases where insurance has not paid. With Bitpay, for example, the insurance agent refused because the issue happened to the third party CEO's computer instead of anything to do with Bitpay itself. With the Youbit exchange in South Korea, their insurance claim was denied, and the exchange ultimately ended up instead going bankrupt with all user's funds lost. To quote Matt Johnson in the original Lloyd's article: “You can create an insurance policy that protects no one – you know there are so many caveats to the policy that it’s not super protective.”
ShakePay's insurance was only reported to cover their cold storage, and “physical theft of the media where the private keys are held”. Physical theft has never, in the history of cryptocurrency exchange cases reviewed, been reported as the cause of loss. From the limited information of the article, ShakePay made it clear their funds are in the hands of a single US custodian, and at least part of their security strategy is to "decline[] to confirm the custodian’s name on the record". While this prevents scrutiny of the custodian, it's pretty silly to speculate that a reasonably competent hacking group couldn't determine who the custodian is. A far more common infiltration strategy historically would be social engineering, which has succeeded repeatedly. A hacker could trick their way into ShakePay's systems and request a fraudulent withdrawal, impersonate ShakePay and request the custodian to move funds, or socially engineer their way into the custodian to initiate the withdrawal of multiple accounts (a payout much larger than ShakePay) exploiting the standard procedures (for example, fraudulently initiating or override the wallet addresses of a real transfer). In each case, nothing was physically stolen and the loss is therefore not covered by insurance.
In order for any insurance to be effective, clear policies have to be established about what needs to be covered. Anything short of that gives Canadians false confidence that they are protected when they aren't in any meaningful way. At this time, the third party insurance market does not appear to provide adequate options or coverage, and effort is necessary to standardize custody standards, which is a likely first step in ultimately setting up an insurance framework.
A better solution compared to third party insurance providers might be for Canadian exchange operators to create their own collective insurance fund, or a specific federal organization similar to the CDIC. Such an organization would have a greater interest or obligation in paying out actual cases, and that would be it's purpose rather than maximizing it's own profit. This would be similar to the SAFU which Binance has launched, except it would cover multiple exchanges. There is little question whether the SAFU would pay out given a breach of Binance, and a similar argument could be made for a insurance fund managed by a collective of exchange operators or a government organization. While a third party insurance provider has the strong market incentive to provide the absolute minimum coverage and no market incentive to payout, an entity managed by exchange operators would have incentive to protect the reputation of exchange operators/the industry, and the government should have the interest of protecting Canadians.

On The Subject of Fractional Reserve
There is a long history of fractional reserve failures, from the first banks in ancient times, through the great depression (where hundreds of fractional reserve banks failed), right through to the 2008 banking collapse referenced in the first bitcoin block. The fractional reserve system allows banks to multiply the money supply far beyond the actual cash (or other assets) in existence, backed only by a system of debt obligations of others. Safely supporting a fractional reserve system is a topic of far greater complexity than can be addressed by a simple policy, and when it comes to cryptocurrency, there is presently no entity reasonably able to bail anyone out in the event of failure. Therefore, this framework is addressed around entities that aim to maintain 100% backing of funds.
There may be some firms that desire but have failed to maintain 100% backing. In this case, there are multiple solutions, including outside investment, merging with other exchanges, or enforcing a gradual restoration plan. All of these solutions are typically far better than shutting down the exchange, and there are multiple cases where they've been used successfully in the past.

Proof of Reserves/Transparency/Accountability
Canadians need to have visibility into the backing on an ongoing basis.
The best solution for crypto-assets is a Proof of Reserve. Such ideas go back all the way to 2013, before even Mt. Gox. However, no Canadian exchange has yet implemented such a system, and only a few international exchanges (CoinFloor in the UK being an example) have. Many firms like Kraken, BitBuy, and now ShakePay use the Proof of Reserve term to refer to lesser proofs which do not actually cryptographically prove the full backing of all user assets on the blockchain. In order for a Proof of Reserve to be effective, it must actually be a complete proof, and it needs to be understood by the public that is expected to use it. Many firms have expressed reservations about the level of transparency required in a complete Proof of Reserve (for example Kraken here). While a complete Proof of Reserves should be encouraged, and there are some solutions in the works (ie TxQuick), this is unlikely to be suitable universally for all exchange operators and users.
Given the limitations, and that firms also manage fiat assets, a more traditional audit process makes more sense. Some Canadian exchanges (CoinSquare, CoinBerry) have already subjected themselves to annual audits. However, these results are not presently shared publicly, and there is no guarantee over the process including all user assets or the integrity and independence of the auditor. The auditor has been typically not known, and in some cases, the identity of the auditor is protected by a NDA. Only in one case (BitBuy) was an actual report generated and publicly shared. There has been no attempt made to validate that user accounts provided during these audits have been complete or accurate. A fraudulent fractional exchange, or one which had suffered a breach they were unwilling to publicly accept (see CoinBene), could easily maintain a second set of books for auditors or simply exclude key accounts to pass an individual audit.
The proposed solution would see a reporting standard which includes at a minimum - percentage of backing for each asset relative to account balances and the nature of how those assets are stored, with ownership proven by the auditor. The auditor would also publicly provide a "hash list", which they independently generate from the accounts provided by the exchange. Every exchange user can then check their information against this public "hash list". A hash is a one-way form of encryption, which fully protects the private information, yet allows anyone who knows that information already to validate that it was included. Less experienced users can take advantage of public tools to calculate the hash from their information (provided by the exchange), and thus have certainty that the auditor received their full balance information. Easy instructions can be provided.
Auditors should be impartial, their identities and process public, and they should be rotated so that the same auditor is never used twice in a row. Balancing the cost of auditing against the needs for regular updates, a 6 month cycle likely makes the most sense.

Hot Wallet Management
The best solution for hot wallets is not to use them. CoinBerry reportedly uses multi-sig on all withdrawals, and Bitmex is an international example known for their structure devoid of hot wallets.
However, many platforms and customers desire fast withdrawal processes, and human validation has a cost of time and delay in this process.
A model of self-insurance or separate funds for hot wallets may be used in these cases. Under this model, a platform still has 100% of their client balance in cold storage and holds additional funds in hot wallets for quick withdrawal. Thus, the risk of those hot wallets is 100% on exchange operators and not affecting the exchange users. Since most platforms typically only have 1%-5% in hot wallets at any given time, it shouldn't be unreasonable to build/maintain these additional reserves over time using exchange fees or additional investment. Larger withdrawals would still be handled at regular intervals from the cold storage.
Hot wallet risks have historically posed a large risk and there is no established standard to guarantee secure hot wallets. When the government of South Korea dispatched security inspections to multiple exchanges, the results were still that 3 of them got hacked after the inspections. If standards develop such that an organization in the market is willing to insure the hot wallets, this could provide an acceptable alternative. Another option may be for multiple exchange operators to pool funds aside for a hot wallet insurance fund. Comprehensive coverage standards must be established and maintained for all hot wallet balances to make sure Canadians are adequately protected.

Current Draft Proposal

(1) Proper multi-signature cold wallet storage.
(a) Each private key is the personal and legal responsibility of one person - the “signatory”. Signatories have special rights and responsibilities to protect user assets. Signatories are trained and certified through a course covering (1) past hacking and fraud cases, (2) proper and secure key generation, and (3) proper safekeeping of private keys. All private keys must be generated and stored 100% offline by the signatory. If even one private keys is ever breached or suspected to be breached, the wallet must be regenerated and all funds relocated to a new wallet.
(b) All signatories must be separate background-checked individuals free of past criminal conviction. Canadians should have a right to know who holds their funds. All signing of transactions must take place with all signatories on Canadian soil or on the soil of a country with a solid legal system which agrees to uphold and support these rules (from an established white-list of countries which expands over time).
(c) 3-5 independent signatures are required for any withdrawal. There must be 1-3 spare signatories, and a maximum of 7 total signatories. The following are all valid combinations: 3of4, 3of5, 3of6, 4of5, 4of6, 4of7, 5of6, or 5of7.
(d) A security audit should be conducted to validate the cold wallet is set up correctly and provide any additional pertinent information. The primary purpose is to ensure that all signatories are acting independently and using best practices for private key storage. A report summarizing all steps taken and who did the audit will be made public. Canadians must be able to validate the right measures are in place to protect their funds.
(e) There is a simple approval process if signatories wish to visit any country outside Canada, with a potential whitelist of exempt countries. At most 2 signatories can be outside of aligned jurisdiction at any given time. All exchanges would be required to keep a compliant cold wallet for Canadian funds and have a Canadian office if they wish to serve Canadian customers.
(2) Regular and transparent solvency audits.
(a) An audit must be conducted at founding, after 3 months of operation, and at least once every 6 months to compare customer balances against all stored cryptocurrency and fiat balances. The auditor must be known, independent, and never the same twice in a row.
(b) An audit report will be published featuring the steps conducted in a readable format. This should be made available to all Canadians on the exchange website and on a government website. The report must include what percentage of each customer asset is backed on the exchange, and how those funds are stored.
(c) The auditor will independently produce a hash of each customer's identifying information and balance as they perform the audit. This will be made publicly available on the exchange and government website, along with simplified instructions that each customer can use to verify that their balance was included in the audit process.
(d) The audit needs to include a proof of ownership for any cryptocurrency wallets included. A satoshi test (spending a small amount) or partially signed transaction both qualify.
(e) Any platform without 100% reserves should be assessed on a regular basis by a government or industry watchdog. This entity should work to prevent any further drop, support any private investor to come in, or facilitate a merger so that 100% backing can be obtained as soon as possible.
(3) Protections for hot wallets and transactions.
(a) A standardized list of approved coins and procedures will be established to constitute valid cold storage wallets. Where a multi-sig process is not natively available, efforts will be undertaken to establish a suitable and stable smart contract standard. This list will be expanded and improved over time. Coins and procedures not on the list are considered hot wallets.
(b) Hot wallets can be backed by additional funds in cold storage or an acceptable third-party insurance provider with a comprehensive coverage policy.
(c) Exchanges are required to cover the full balance of all user funds as denominated in the same currency, or double the balance as denominated in bitcoin or CAD using an established trading rate. If the balance is ever insufficient due to market movements, the firm must rectify this within 24 hours by moving assets to cold storage or increasing insurance coverage.
(d) Any large transactions (above a set threshold) from cold storage to any new wallet addresses (not previously transacted with) must be tested with a smaller transaction first. Deposits of cryptocurrency must be limited to prevent economic 51% attacks. Any issues are to be covered by the exchange.
(e) Exchange platforms must provide suitable authentication for users, including making available approved forms of two-factor authentication. SMS-based authentication is not to be supported. Withdrawals must be blocked for 48 hours in the event of any account password change. Disputes on the negligence of exchanges should be governed by case law.

Steps Forward

Continued review of existing OSC feedback is still underway. More feedback and opinions on the framework and ideas as presented here are extremely valuable. The above is a draft and not finalized.
The process of further developing and bringing a suitable framework to protect Canadians will require the support of exchange operators, legal experts, and many others in the community. The costs of not doing such are tremendous. A large and convoluted framework, one based on flawed ideas or implementation, or one which fails to properly safeguard Canadians is not just extremely expensive and risky for all Canadians, severely limiting to the credibility and reputation of the industry, but an existential risk to many exchanges.
The responsibility falls to all of us to provide our insight and make our opinions heard on this critical matter. Please take the time to give your thoughts.
submitted by azoundria2 to QuadrigaInitiative [link] [comments]

Monthly Nano News: December 2019 + Year Recap Special

This is what NANO has been up to lately. I don't think I lie if I say it has been quite an amazing year!
See you soon and happy new year! Something nice is coming soon that I have been working on for a while, stay tuned..

December 2019

November 2019

October 2019

September 2019

August 2019

July 2019

June 2019

May 2019

Apr 2019

Mar 2019

Feb 2019

Jan 2019


More news here: https://nanolinks.info/news

https://preview.redd.it/9sw5nkoxlt741.png?width=749&format=png&auto=webp&s=3426d4eafb9430c0304a6d161596102536df4318
submitted by Joohansson to nanocurrency [link] [comments]

A Beginners Guide to Bitcoin, Blockchain & Cryptocurrency

As cryptocurrency, and blockchain technology become more abundant throughout our society, it’s important to understand the inner workings of this technology, especially if you plan to use cryptocurrency as an investment vehicle. If you’re new to the crypto-sphere, learning about Bitcoin makes it much easier to understand other cryptocurrencies as many other altcoins' technologies are borrowed directly from Bitcoin.
Bitcoin is one of those things that you look into only to discover you have more questions than answers, and right as you’re starting to wrap your head around the technology; you discover the fact that Bitcoin has six other variants (forks), the amount of politics at hand, or that there are over a thousand different cryptocurrencies just as complex if not even more complex than Bitcoin.
We are currently in the infancy of blockchain technology and the effects of this technology will be as profound as the internet. This isn’t something that’s just going to fade away into history as you may have been led to believe. I believe this is something that will become an integral part of our society, eventually embedded within our technology. If you’re a crypto-newbie, be glad that you're relatively early to the industry. I hope this post will put you on the fast-track to understanding Bitcoin, blockchain, and how a large percentage of cryptocurrencies work.

Community Terminology

Altcoin: Short for alternative coin. There are over 1,000 different cryptocurrencies. You’re probably most familiar with Bitcoin. Anything that isn’t Bitcoin is generally referred to as an altcoin.
HODL: Misspelling of hold. Dank meme accidentally started by this dude. Hodlers are much more interested in long term gains rather than playing the risky game of trying to time the market.
TO THE MOON: When a cryptocurrency’s price rapidly increases. A major price spike of over 1,000% can look like it’s blasting off to the moon. Just be sure you’re wearing your seatbelt when it comes crashing down.
FUD: Fear. Uncertainty. Doubt.
FOMO: Fear of missing out.
Bull Run: Financial term used to describe a rising market.
Bear Run: Financial term used to describe a falling market.

What Is Bitcoin?

Bitcoin (BTC) is a decentralized digital currency that uses cryptography to secure and ensure validity of transactions within the network. Hence the term crypto-currency. Decentralization is a key aspect of Bitcoin. There is no CEO of Bitcoin or central authoritative government in control of the currency. The currency is ran and operated by the people, for the people. One of the main development teams behind Bitcoin is blockstream.
Bitcoin is a product of blockchain technology. Blockchain is what allows for the security and decentralization of Bitcoin. To understand Bitcoin and other cryptocurrencies, you must understand to some degree, blockchain. This can get extremely technical the further down the rabbit hole you go, and because this is technically a beginners guide, I’m going to try and simplify to the best of my ability and provide resources for further technical reading.

A Brief History

Bitcoin was created by Satoshi Nakamoto. The identity of Nakamoto is unknown. The idea of Bitcoin was first introduced in 2008 when Nakamoto released the Bitcoin white paper - Bitcoin: A Peer-to-Peer Electronic Cash System. Later, in January 2009, Nakamoto announced the Bitcoin software and the Bitcoin network officially began.
I should also mention that the smallest unit of a Bitcoin is called a Satoshi. 1 BTC = 100,000,000 Satoshis. When purchasing Bitcoin, you don’t actually need to purchase an entire coin. Bitcoin is divisible, so you can purchase any amount greater than 1 Satoshi (0.00000001 BTC).

What Is Blockchain?

Blockchain is a distributed ledger, a distributed collection of accounts. What is being accounted for depends on the use-case of the blockchain itself. In the case of Bitcoin, what is being accounted for is financial transactions.
The first block in a blockchain is referred to as the genesis block. A block is an aggregate of data. Blocks are also discovered through a process known as mining (more on this later). Each block is cryptographically signed by the previous block in the chain and visualizing this would look something akin to a chain of blocks, hence the term, blockchain.
For more information regarding blockchain I’ve provided more resouces below:

What is Bitcoin Mining

Bitcoin mining is one solution to the double spend problem. Bitcoin mining is how transactions are placed into blocks and added onto the blockchain. This is done to ensure proof of work, where computational power is staked in order to solve what is essentially a puzzle. If you solve the puzzle correctly, you are rewarded Bitcoin in the form of transaction fees, and the predetermined block reward. The Bitcoin given during a block reward is also the only way new Bitcoin can be introduced into the economy. With a halving event occurring roughly every 4 years, it is estimated that the last Bitcoin block will be mined in the year 2,140. (See What is Block Reward below for more info).
Mining is one of those aspects of Bitcoin that can get extremely technical and more complicated the further down the rabbit hole you go. An entire website could be created (and many have) dedicated solely to information regarding Bitcoin mining. The small paragraph above is meant to briefly expose you to the function of mining and the role it plays within the ecosystem. It doesn’t even scratch the surface regarding the topic.

How do you Purchase Bitcoin?

The most popular way to purchase Bitcoin through is through an online exchange where you trade fiat (your national currency) for Bitcoin.
Popular exchanges include:
  • Coinbase
  • Kraken
  • Cex
  • Gemini
There’s tons of different exchanges. Just make sure you find one that supports your national currency.

Volatility

Bitcoin and cryptocurrencies are EXTREMELY volatile. Swings of 30% or more within a few days is not unheard of. Understand that there is always inherent risks with any investment. Cryptocurrencies especially. Only invest what you’re willing to lose.

Transaction & Network Fees

Transacting on the Bitcoin network is not free. Every purchase or transfer of Bitcoin will cost X amount of BTC depending on how congested the network is. These fees are given to miners as apart of the block reward.
Late 2017 when Bitcoin got up to $20,000USD, the average network fee was ~$50. Currently, at the time of writing this, the average network fee is $1.46. This data is available in real-time on BitInfoCharts.

Security

In this new era of money, there is no central bank or government you can go to in need of assistance. This means the responsibility of your money falls 100% into your hands. That being said, the security regarding your cryptocurrency should be impeccable. The anonymity provided by cryptocurrencies alone makes you a valuable target to hackers and scammers. Below I’ve detailed out best practices regarding securing your cryptocurrency.

Two-Factor Authentication (2FA)

Two-factor authentication is a second way of authenticating your identity upon signing in to an account. Most cryptocurrency related software/websites will offer or require some form of 2FA. Upon creation of any crypto-related account find the Security section and enable 2FA.

SMS Authentication

The most basic form of 2FA which you are probably most familiar with. This form of authentication sends a text message to your smartphone with a special code that will allow access to your account upon entry. Note that this is not the safest form of 2FA as you may still be vulnerable to what is known as a SIM swap attack. SIM swapping is a social engineering method in which an attacker will call up your phone carrier, impersonating you, in attempt to re-activate your SIM card on his/her device. Once the attacker has access to your SIM card he/she now has access to your text messages which can then be used to access your online accounts. You can prevent this by using an authenticator such as Google Authenticator.

Authenticator

The use of an authenticator is the safest form of 2FA. An authenticator is installed on a seperate device and enabling it requires you input an ever changing six digit code in order to access your account. I recommend using Google Authenticator.
If a website has the option to enable an authenticator, it will give you a QR code and secret key. Use Google Authenticator to scan the QR code. The secret key consists of a random string of numbers and letters. Write this down on a seperate sheet of paper and do not store it on a digital device.
Once Google Authenticator has been enabled, every time you sign into your account, you will have to input a six-digit code that looks similar to this. If you happen to lose or damage the device you have Google Authenticator installed on, you will be locked out of your account UNLESS you have access to the secret key (which you should have written down).

Hardware Wallets

A wallet is what you store Bitcoin and cryptocurrency on. I’ll provide resources on the different type of wallets later but I want to emphasize the use of a hardware wallet (aka cold storage).
Hardware wallets are the safest way of storing cryptocurrency because it allows for your crypto to be kept offline in a physical device. After purchasing crypto via an exchange, I recommend transferring it to cold storage. The most popular hardware wallets include the Ledger Nano S, and Trezor.
Hardware wallets come with a special key so that if it gets lost or damaged, you can recover your crypto. I recommend keeping your recovery key as well as any other sensitive information in a safety deposit box.
I know this all may seem a bit manic, but it is important you take the necessary security precautions in order to ensure the safety & longevity of your cryptocurrency.

Technical Aspects of Bitcoin

TL;DR
  • Address: What you send Bitcoin to.
  • Wallet: Where you store your Bitcoin
  • Max Supply: 21 million
  • Block Time: ~10 minutes
  • Block Size: 1-2 MB
  • Block Reward: BTC reward received from mining.

What is a Bitcoin Address?

A Bitcoin address is what you send Bitcoin to. If you want to receive Bitcoin you’d give someone your Bitcoin address. Think of a Bitcoin address as an email address for money.

What is a Bitcoin Wallet?

As the title implies, a Bitcoin wallet is anything that can store Bitcoin. There are many different types of wallets including paper wallets, software wallets and hardware wallets. It is generally advised NOT to keep cryptocurrency on an exchange, as exchanges are prone to hacks (see Mt. Gox hack).
My preferred method of storing cryptocurrency is using a hardware wallet such as the Ledger Nano S or Trezor. These allow you to keep your crypto offline in physical form and as a result, much more safe from hacks. Paper wallets also allow for this but have less functionality in my opinion.
After I make crypto purchases, I transfer it to my Ledger Nano S and keep that in a safe at home. Hardware wallets also come with a special key so that if it gets lost or damaged, you can recover your crypto. I recommend keeping your recovery key in a safety deposit box.

What is Bitcoins Max Supply?

The max supply of Bitcoin is 21 million. The only way new Bitcoins can be introduced into the economy are through block rewards which are given after successfully mining a block (more on this later).

What is Bitcoins Block Time?

The average time in which blocks are created is called block time. For Bitcoin, the block time is ~10 minutes, meaning, 10 minutes is the minimum amount of time it will take for a Bitcoin transaction to be processed. Note that transactions on the Bitcoin network can take much longer depending on how congested the network is. Having to wait a few hours or even a few days in some instances for a transaction to clear is not unheard of.
Other cryptocurrencies will have different block times. For example, Ethereum has a block time of ~15 seconds.
For more information on how block time works, Prabath Siriwardena has a good block post on this subject which can be found here.

What is Bitcoins Block Size?

There is a limit to how large blocks can be. In the early days of Bitcoin, the block size was 36MB, but in 2010 this was reduced to 1 MB in order to prevent distributed denial of service attacks (DDoS), spam, and other malicious use on the blockchain. Nowadays, blocks are routinely in excess of 1MB, with the largest to date being somewhere around 2.1 MB.
There is much debate amongst the community on whether or not to increase Bitcoin’s block size limit to account for ever-increasing network demand. A larger block size would allow for more transactions to be processed. The con argument to this is that decentralization would be at risk as mining would become more centralized. As a result of this debate, on August 1, 2017, Bitcoin underwent a hard-fork and Bitcoin Cash was created which has a block size limit of 8 MB. Note that these are two completely different blockchains and sending Bitcoin to a Bitcoin Cash wallet (or vice versa) will result in a failed transaction.
Update: As of May 15th, 2018 Bitcoin Cash underwent another hard fork and the block size has increased to 32 MB.
On the topic of Bitcoin vs Bitcoin Cash and which cryptocurrency is better, I’ll let you do your own research and make that decision for yourself. It is good to know that this is a debated topic within the community and example of the politics that manifest within the space. Now if you see community members arguing about this topic, you’ll at least have a bit of background to the issue.

What is Block Reward?

Block reward is the BTC you receive after discovering a block. Blocks are discovered through a process called mining. The only way new BTC can be added to the economy is through block rewards and the block reward is halved every 210,000 blocks (approximately every 4 years). Halving events are done to limit the supply of Bitcoin. At the inception of Bitcoin, the block reward was 50BTC. At the time of writing this, the block reward is 12.5BTC. Halving events will continue to occur until the amount of new Bitcoin introduced into the economy becomes less than 1 Satoshi. This is expected to happen around the year 2,140. All 21 million Bitcoins will have been mined. Once all Bitcoins have been mined, the block reward will only consist of transaction fees.

Technical Aspects Continued

Understanding Nodes

Straight from the Bitcoin.it wiki
Any computer that connects to the Bitcoin network is called a node. Nodes that fully verify all of the rules of Bitcoin are called full nodes.
In other words, full nodes are what verify the Bitcoin blockchain and they play a crucial role in maintaining the decentralized network. Full nodes store the entirety of the blockchain and validate transactions. Anyone can participate in the Bitcoin network and run a full node. Bitcoin.org has information on how to set up a full node. Running a full node also gives you wallet capabilities and the ability to query the blockchain.
For more information on Bitcoin nodes, see Andreas Antonopoulos’s Q&A on the role of nodes.

What is a Fork?

A fork is a divergence in a blockchain. Since Bitcoin is a peer-to-peer network, there’s an overall set of rules (protocol) in which participants within the network must abide by. These rules are put in place to form network consensus. Forks occur when implementations must be made to the blockchain or if there is disagreement amongst the network on how consensus should be achieved.

Soft Fork vs Hard Fork

The difference between soft and hard forks lies in compatibility. Soft forks are backwards compatible, hard forks are not. Think of soft forks as software upgrades to the blockchain, whereas hard forks are a software upgrade that warrant a completely new blockchain.
During a soft fork, miners and nodes upgrade their software to support new consensus rules. Nodes that do not upgrade will still accept the new blockchain.
Examples of Bitcoin soft forks include:
A hard fork can be thought of as the creation of a new blockchain that X percentage of the community decides to migrate too. During a hard fork, miners and nodes upgrade their software to support new consensus rules, Nodes that do not upgrade are invalid and cannot accept the new blockchain.
Examples of Bitcoin hard forks include:
  • Bitcoin Cash
  • Bitcoin Gold
Note that these are completely different blockchains and independent from the Bitcoin blockchain. If you try to send Bitcoin to one of these blockchains, the transaction will fail.

A Case For Bitcoin in a World of Centralization

Our current financial system is centralized, which means the ledger(s) that operate within this centralized system are subjugated to control, manipulation, fraud, and many other negative aspects that come with this system. There are also pros that come with a centralized system, such as the ability to swiftly make decisions. However, at some point, the cons outweigh the pros, and change is needed. What makes Bitcoin so special as opposed to our current financial system is that Bitcoin allows for the decentralized transfer of money. Not one person owns the Bitcoin network, everybody does. Not one person controls Bitcoin, everybody does. A decentralized system in theory removes much of the baggage that comes with a centralized system. Not to say the Bitcoin network doesn’t have its problems (wink wink it does), and there’s much debate amongst the community as to how to go about solving these issues. But even tiny steps are significant steps in the world of blockchain, and I believe Bitcoin will ultimately help to democratize our financial system, whether or not you believe it is here to stay for good.

Final Conclusions

Well that was a lot of words… Anyways I hope this guide was beneficial, especially to you crypto newbies out there. You may have come into this realm not expecting there to be an abundance of information to learn about. I know I didn’t. Bitcoin is only the tip of the iceberg, but now that you have a fundamental understanding of Bitcoin, learning about other cryptocurrencies such as Litecoin, and Ethereum will come more naturally.
Feel free to ask questions below! I’m sure either the community or myself would be happy to answer your questions.
Thanks for reading!

Related Links

Guides

Exchanges

submitted by MrCryptoDude to Bitcoin [link] [comments]

Groestlcoin September 2019 Development Release/Update!

For a more interactive view of changes, click here
In our current world; bordering on financial chaos, with tariff wars, Brexit and hyperinflation rife, you can count on Groestlcoin to consistently produce innovation that strikes to take the power away from the few and into the many, even after a full five and a half years of solid development.
Here is what the team has already announced in the last 3 months since the last development update:

What's Being Released Today?

Groestl Nodes

What am I?

Groestl Nodes aims to map out and compare the status of the Groestlcoin mainnet and testnet networks. Even though these networks share the same protocol, there is currently no way to directly compare these coins in a single location. These statistics are essential to evaluate the relative health of both networks.

Features

Source - Website

Groestlcoin Transaction Tool

What am I?

This is a tool for creating unsigned raw Groestlcoin transactions and also to verify existing transactions by entering in the transaction hex and converting this to a human-readable format to verify that a transaction is correct before it is signed.

Features

SourceDownload

Groestlcoin AGCore

What am I?

AGCore is an Android app designed to make it easier to run a Groestlcoin Core node on always-on Android appliances such as set-top boxes, Android TVs and repurposed tablets/phones. If you are a non-technical user of Groestlcoin and want an Android app that makes it easy to run a Groestlcoin Core node by acting as a wrapper, then AG Core is the right choice for you.

What's Changed?

Source - Download

Groestlcoin Electrum

What's Changed?

Android Electrum-Specific

OSXWindowsWindows StandaloneWindows PortableLinux - Android
Server SourceServer Installer SourceClient SourceIcon SourceLocale Source

Android Wallet – Including Android Wallet Testnet

What am I?

Android Wallet is a BIP-0032 compatible hierarchial deterministic Groestlcoin Wallet, allowing you to send and receive Groestlcoin via QR codes and URI links.

V7.11.1 Changes

Groestlcoin Java Library SourceSource - DownloadTestnet Download

Groestlwallet

What am I?

Groestlwallet is designed to protect you from malware, browser security holes, even physical theft. With AES hardware encryption, app sandboxing, keychain and code signatures, groestlwallet represents a significant security advance over web and desktop wallets, and other mobile platforms.
Simplicity is groestlwallet's core design principle. Because groestlwallet is "deterministic", your balance and entire transaction history can be restored from just your recovery phrase.

iOS 0.7.3 Changes

Android v89 Changes

iOS SourceAndroid Source - Android DownloadiOS Download

Groestlcoinomi Released

What am I?

Groestlcoinomi is a lightweight thin-client Groestlcoin wallet based on a client-server protocol.

Groestlcoinomi v1.1 Desktop Changes

Groestlcoinomi Android v1.6 Changes

Groestlcoin Java Library SourceAndroid Source
Android DownloadWindows DownloadMac OS DownloadLinux Download

Groestlcoin BIP39 Tool

What's Changed?

Source - Download
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

#PundiX Announces Recap of May 2019 Activities via Insider Report @peko0413

#PundiX Announces Recap of May 2019 Activities via Insider Report @peko0413

https://preview.redd.it/ofov3435fv231.png?width=1514&format=png&auto=webp&s=5468e6d66a607506b442ba6962aa4d40ccb9f194
Dear Pundians,
We’re close to capping the first half of the year, but we assure you that Pundi X has barely scratched the surface in terms of what we can offer in 2019. A lot of works are in progress which we will announce when ready. Nonetheless, we have achieved some very promising milestones for the past few weeks, further highlighting our commitment to bringing easy payments and unparalleled crypto experience to our clients. More product enhancements, merchant activation, greater engagements, and higher security standards — these are what we have delivered last month.

Product Development

XPOS certified by FCC and KC
https://preview.redd.it/vbi50ii9fv231.png?width=662&format=png&auto=webp&s=45c454ea73d5ea80876b87d9af016e6b78d8fbca
We are proud to announce that XPOS received certifications from the Federal Communications Commission (FCC) and Korea Certification (KC), on top of the certification it has already received from CE and TRA. These certifications will certainly help build XPOS a trustworthy blockchain device as these markings indicate that from a safety and environmental protection perspective the XPOS can confidently be used by their customers.
Pundi X Open Platform is available for token listing from May 11
https://preview.redd.it/36r4gzqefv231.png?width=684&format=png&auto=webp&s=d38593b26a938eebf1aea3f4a8ea87b54f3b6253
At the beginning of the month (1st May) we’ve launched Pundi X Open Platform that allows blockchain developers or businesses to sign up for a developer account to list their ERC20 tokens throughout XPOS, XWallet and XPASS. Not only that, now the developers have the option to create customized XPASS cards. To learn more about how to list on the Open Platform, you can read the instruction here.
NPXS buy back to incentivize quality blockchain developers to list on the Pundi X Open Platform
After announcing Pundi X Open Platform, the team has allocated the tokens from the Partnership Reserve Fund (PRF) to encourage good blockchain projects to list on Pundi X payment platform by subsidizing their initial liquidity pools. The source of PRF is the NPXS that we buy back from the open markets. On May 20, we executed NPXS buybacks equivalent to 500 ETH at around $0.00072 dollars on May 20, 2019.
XWallet improvements
This month we continue improving XWallet by adding more features and support. Here is a list of improvements we made in May:
  1. Added the option to deactivate Google Authenticator
  2. Improved SMS delivery service by fixing the issue of SMS delivery failed in certain countries
  3. Added unlocking feature using fingerprint and facial recognition
  4. Added German language support
  5. Activated NPXSXEM transfer feature to private wallet addresses
XWallet app on Samsung Galaxy Store
We’ve also working hard to make XWallet app on more platform. It is now available on Samsung Galaxy Store.
https://twitter.com/PundiXLabs/status/1130814360245248000
You can use XWallet app for not only topping up and paying cryptos instantly with XPOS merchants across 30 countries but also sending tokens to any XWallet user in the world without fee when the receiver uses the ‘Collection’ feature. Most of XWallet users are also using staking feature from both XWallet and their own ERC20 private wallets to get FX tokens.
As of today, XWallet has more than 200,000 registered users and growing.

Merchant Adoption and XPOS partner update

DoshEx brought crypto payment to coffee shops in South Africa
https://twitter.com/thedoshexchange/status/1126024888828010496/
Dosh Exchange is now expanding their XPOS footprint to coffee shops in South Africa. Pundians can now enjoy the best coffee in town using XPOS. XPASSes can also be bought in-store and used at the counter immediately.
iBank introduced Cao Jun XPASS card during New York Blockchain week
Limited editions of Cao Jun XPASS card powered by Pundi X and IOST have made its first appearance during a Night at BlockchainImpact event on May 15 during the blockchain week in New York. The cocktail gathered Limited Partners (LPs) and General Partners (LPs), family offices, corporate investment offices, and individuals for networking opportunities and blockchain investments. To get the limited editions of CaoJun XPASS cards, you can order them at https://www.ibankdigital.io/ibankxpass
https://twitter.com/iBank_Digital/status/1129530118852845569
Pundi X and BlockVibe
Thanks to BlockVibe’s cryptocurrency savvy members, Pundi’s XPOS system will now be available in more businesses in the future. This new partnershipwill not only bring cryptocurrency closer to becoming a mainstream form of payment, but will also cement Pundi X’s crucial role in helping realize this possibility.
BlockVibe has successfully held an event on the Korean American Chamber. In this event, XPOS has been introduced to the participants. In the near future, there will be more and more XPOS merchants activated by BlockVibe.
https://medium.com/@Blockvibe/blockvibe-event-with-the-koam-korean-american-chamber-of-commerce-bf8568385734
Bit2Big in Blockchain Summit Nigeria
On 24th May, the CEO of Bit2Big and blkchainafrica, Mr Kiberu Nagenda was presenting at BlockchainSummit Nigeria. Summit participants can also experience the transaction via XPOS devices.
https://twitter.com/Bit2Big/status/1131539944441303040

Pundi X Events

Pundi X at the BitConfBR in Sao Paulo
https://preview.redd.it/otymepitgv231.png?width=699&format=png&auto=webp&s=7479cd22fb532b4acb0e78475a4f8e8325f28cc1
Pundi X Brazil team had an action-packed weekend at BitconF held from 6 to 9 May. Attendees headed to our stand and top up cryptos in their XPASS cards and XWallet, while learning more about our company and our advanced XPOS technology.
La Conexion Conference in Medellin
During 21–22 May 2019, Brazil Country Manager of Pundi X Joao Victor Mendes attended the La Conexion Conference held at Country Club Medellin, Colombia. Joao discussed the adoption of digital assets and their direct impact on the retail industry, in light of the huge potential for blockchain development in Latin America.
https://twitter.com/jvictormendess/status/1130140915471978496
Keynote at Blockchain Finance Conference, APAC in Singapore
On May 8 2019, Vic Tham, CEO of Quantum Energy Asset Management and Chief Investment Officer of Pundi X Labs was a speaker at Blockchain for Finance Conference, APAC. Vic Tham has delivered keynote regarding investing in Blockchain or Fintech startups.
https://twitter.com/VicWTham/status/1126921973529899008
Bitcoin Pizza Day
On 22 May 2010, programmer Laszlo Hanyecz bought two pizzas for 10,000 bitcoins. Known as the first real-world transaction with bitcoin, this event paved the way for greater exploration into the world of crypto payments. To learn more about the history, you can read the revolution of cryptocurrency payment at CoinMarketCap.
Pundi X is grateful to be a part of this massive revolution, and of course we celebrated the day by satisfying some Bitcoin Pizza Day-induced cravings. We partnered with Papa John’s in Seoul and offered pizza discounts to anyone who used their XWallets to purchase from the store as well as hosting a 24 hour online XPOS flash sale.
https://twitter.com/PundiXLabs/status/1131189007256174592
XBlockchain Meetup in Seoul
The following day in Seoul, we held an XBlockchain Meetup with Function X Foundation and Dapp.com. In the meetup, we have shared the update and ongoing R&D progress, including upcoming integration with Binance Chain and new social networking service on Function X ecosystem, FX Thread (code name). XWallet users will be the first to preview and test this service before the launch of XPhone.
https://twitter.com/FUNCTIONX_IO/status/1131731391706566656
David Ben Kay, Chief Legal Counsel of Pundi X, has officially onboard to lead Function X Foundation. He shared the foundation vision and status of Function X development in this meetup.
InnoVEX Forum in Taipei
On May 30, I had the honor to be invited to deliver keynote about blockchain for smart payment at InnoVEX, one of Asia’s leading startup platforms in conjunction with Computex 2019 and later participated the panel led by Jason Hsu, Taiwan’s Crypto Congressman with Dominik Schiener from IOTA and Jeff McDonald from NEM Foundation.
https://twitter.com/peko0413/status/1134122186027876352
Pundi X joins the Blockchain Collaborative Consortium in Japan
Japan-based Blockchain Collaborative Consortium (BCCC) welcomed Pundi X on 27 May, in a step for us to engage Japanese institutions and regulations and develop awareness around blockchain. According to BCCC, they promote the widespread adoption of blockchain technology, particularly through the acquisition of latest information and basic knowledge of blockchains, training of engineers and planners, formation of network willingness of practical experiments and implementation, and the implementation of blockchain related business to be widely notified to the market and the adoption of blockchain to various businesses.
The crypto space in Japan is growing at a desirable rate, and we are hopeful that Pundi X will be one of the frontliners in helping BCCC achieve its goals.

NPXS token removal

https://preview.redd.it/xhwud1tuhv231.png?width=699&format=png&auto=webp&s=ae5b9e62f58668d382d89557da1ec0f6ef4aa30a
Pundi X team has executed the token removal as planned on May 11, 2019. A total of approximately 14.5 billion (7.59 billion of NPXS and 6.95 billion of NPXSXEM) have permanently removed from the supply. You can check the details here.

Monthly unlock token mechanism is completed

The monthly unlock tokens came to an end on May 31 as announced. The team will complete the last batch of unlock NPXS and NPXSXEM by mid June. After that, there will be no monthly unlock tokens.
For the KYC verified NPXS/NPXSXEM XWallet users, don’t forget you have the option to hold your NPXS/NPXSXEM to stake for FX tokens till March 19, 2020.
That’s all for the highlights of Pundi X Insider in May. Hope you enjoy our progress. I look forward to sharing our next update in June!
submitted by crypt0hodl1 to PundiX [link] [comments]

An article shows you the charm of TarK payment system!

An article shows you the charm of TarK payment system!

With the development of the Internet and the digital economy, new payment methods such as WeChat and Alipay have appeared, which has greatly impacted the traditional cash transaction model. In line with the development needs of the token economy, the digital payment system accompanied by block chain technology has become the latest method of asset management.
The rise of each concept is not groundless. Today we take the TarK payment system as an example to explore the charm of digital payment systems in addition to ensuring asset security.
For digital payment systems, there are many categories, such as online payment systems, offline payment systems, cold payment systems, hot payment systems, full-node payment systems, light payment systems, centralized payment systems, hardware payment systems and many other payment systems. The most important indicators for assessing the quality of a payment system are the security performance, the diversity of functions and the convenience of application.
TarK payment system - excellent security performance

https://preview.redd.it/fuwxz1fpxss31.png?width=692&format=png&auto=webp&s=82d7ac1b7cce78b7722fc09f75cdfbbb5abe7e95
In 2018, the number of digital payment system users reached 35 million, and the loss of digital assets due to payment system security vulnerabilities was about 1.2 billion US dollars. The digital payment system industry is also facing serious security problems as well as the rapid development.
Tark payment system created the world's first dual-form cold payment system security protection model. It introduced the top technology innovation and multi-person collaborative management function of Silicon Valley in the United States, which greatly reduces the safety factor of the risk of the user's token asset and escorts the user's token assets!
In addition,When the payment system is idle, the network will automatically open the never-on-network mode. It builds transactions and signatures at the cold end, and broadcasts transactions at the hot end, creating a strong protection shield for the token assets, completely eradicating the network hacking and resisting the asset risks caused by various reasons.
Compared with the traditional token asset payment system, Tark payment system strictly controlled the payment and withdrawal operation, and the two password security management mechanisms of seed password + payment password prevent theft of assets and fraudulent use, cryptographic storage, never touch the network, secure verification and delete after you use.
TarK payment system - with versatile features to meet all your needs
TarK combines cross-chain technology with a payment system to create a digital payment system with more features. Cross-chain technology can be understood as a bridge connecting each blockchain to meet asset flow, information intercommunication and application coordination between different blockchains. If the cross-chain is not resolved, the major blockchains will be isolated islands, and there is no exchange of value and data between them.

https://preview.redd.it/gnd61rtrxss31.png?width=692&format=png&auto=webp&s=f317d4287b7e9a14214eec7729ad3401ff798af2
The emergence of the TarK cross-chain payment system has undoubtedly brought new blood to this technology. Compared with the current situation that a public blockchain and a payment system in the blockchain market, do not exchange information and can only classify storage and transactions, the TarK payment system with cross-chain technology supports multi-currency storage and also supports secure transaction functions. In addition, TarK payment system also has a private key import function, mnemonic words backup function, on-chain matching transaction function, game lobby function, online live broadcast function, on-chain query function.
TarK payment system - think for you, improve user experience
The transaction results are promptly reminded, and the asset is collected in one step! Tark provides offline notification of transaction result reminders. Users do not need to be online for a long time. After the transaction is completed, they can quickly receive the transaction result reminder SMS. Reminders are accepted even when they are offline, and there is no need to worry about asset reception overdue in any scenario.
Multi-platform market and consultation, wealth dividends are at your fingertips! Tark gathers information on mainstream trading platforms, covering global mainstream trading platforms and token market information, including world-renowned portals such as Huobi, Binance, OKEX, Bitcoin Forum, etc., so that you can stay at home to control the trend of more than ten thousand kinds of token assets.
Personal assets are queried in real time, assets are in hand and take leave without delay. Tark provides users with intimate personal asset real-time query function, users can quickly log in to the payment system APP to view personal assets without complicated operations. With a click of your finger, you can quickly know your asset status.
Multi-language currency support, global user linkage. Tark supports English, Korean, Thai, Russian, French, German, and other more than 20 languages worldwide, and all the types of tokens that are circulated worldwide, creating a global settlement payment tool. Language and currency open mode, where you can quickly make storage and payments.
QR code / NFC communication, covering the mainstream of global payment methods. Tark supports mainstream payment methods worldwide, including QR code and NFC two mainstream U payment methods, allowing users to experience different dimensions in the same payment scenario. Diversified payment methods enable multi-level payment storage experience.
Such a payment system, are you sure you are not attracted?
Official download address of Tark payment system: http://www.tarkwallet.com/download/down.html
Chinese telegram group: https://t.me/TARKOFFICIAL\_CN
English telegram group: https://t.me/TARKOFFICIAL\_EN
submitted by gswt to u/gswt [link] [comments]

An article shows you the charm of TarK payment system!

An article shows you the charm of TarK payment system!

With the development of the Internet and the digital economy, new payment methods such as WeChat and Alipay have appeared, which has greatly impacted the traditional cash transaction model. In line with the development needs of the token economy, the digital payment system accompanied by block chain technology has become the latest method of asset management.
The rise of each concept is not groundless. Today we take the TarK payment system as an example to explore the charm of digital payment systems in addition to ensuring asset security.
For digital payment systems, there are many categories, such as online payment systems, offline payment systems, cold payment systems, hot payment systems, full-node payment systems, light payment systems, centralized payment systems, hardware payment systems and many other payment systems. The most important indicators for assessing the quality of a payment system are the security performance, the diversity of functions and the convenience of application.
TarK payment system - excellent security performance

https://preview.redd.it/g881l4yhfnn31.png?width=692&format=png&auto=webp&s=61bf9b9736d01b908853ad373be66bb6c8e62890
In 2018, the number of digital payment system users reached 35 million, and the loss of digital assets due to payment system security vulnerabilities was about 1.2 billion US dollars. The digital payment system industry is also facing serious security problems as well as the rapid development.
Tark payment system created the world's first dual-form cold payment system security protection model. It introduced the top technology innovation and multi-person collaborative management function of Silicon Valley in the United States, which greatly reduces the safety factor of the risk of the user's token asset and escorts the user's token assets!
In addition,When the payment system is idle, the network will automatically open the never-on-network mode. It builds transactions and signatures at the cold end, and broadcasts transactions at the hot end, creating a strong protection shield for the token assets, completely eradicating the network hacking and resisting the asset risks caused by various reasons.
Compared with the traditional token asset payment system, Tark payment system strictly controlled the payment and withdrawal operation, and the two password security management mechanisms of seed password + payment password prevent theft of assets and fraudulent use, cryptographic storage, never touch the network, secure verification and delete after you use.
TarK payment system - with versatile features to meet all your needs
TarK combines cross-chain technology with a payment system to create a digital payment system with more features. Cross-chain technology can be understood as a bridge connecting each blockchain to meet asset flow, information intercommunication and application coordination between different blockchains. If the cross-chain is not resolved, the major blockchains will be isolated islands, and there is no exchange of value and data between them.

https://preview.redd.it/iydhqr7kfnn31.png?width=692&format=png&auto=webp&s=f0ee1a2a5fbc231591c63df2da750b7fff8884f5
The emergence of the TarK cross-chain payment system has undoubtedly brought new blood to this technology. Compared with the current situation that a public blockchain and a payment system in the blockchain market, do not exchange information and can only classify storage and transactions, the TarK payment system with cross-chain technology supports multi-currency storage and also supports secure transaction functions. In addition, TarK payment system also has a private key import function, mnemonic words backup function, on-chain matching transaction function, game lobby function, online live broadcast function, on-chain query function.
TarK payment system - think for you, improve user experience
The transaction results are promptly reminded, and the asset is collected in one step! Tark provides offline notification of transaction result reminders. Users do not need to be online for a long time. After the transaction is completed, they can quickly receive the transaction result reminder SMS. Reminders are accepted even when they are offline, and there is no need to worry about asset reception overdue in any scenario.
Multi-platform market and consultation, wealth dividends are at your fingertips! Tark gathers information on mainstream trading platforms, covering global mainstream trading platforms and token market information, including world-renowned portals such as Huobi, Binance, OKEX, Bitcoin Forum, etc., so that you can stay at home to control the trend of more than ten thousand kinds of token assets.
Personal assets are queried in real time, assets are in hand and take leave without delay. Tark provides users with intimate personal asset real-time query function, users can quickly log in to the payment system APP to view personal assets without complicated operations. With a click of your finger, you can quickly know your asset status.
Multi-language currency support, global user linkage. Tark supports English, Korean, Thai, Russian, French, German, and other more than 20 languages worldwide, and all the types of tokens that are circulated worldwide, creating a global settlement payment tool. Language and currency open mode, where you can quickly make storage and payments.
QR code / NFC communication, covering the mainstream of global payment methods. Tark supports mainstream payment methods worldwide, including QR code and NFC two mainstream U payment methods, allowing users to experience different dimensions in the same payment scenario. Diversified payment methods enable multi-level payment storage experience.
Such a payment system, are you sure you are not attracted?
Official download address of Tark payment system: http://www.tarkwallet.com/download/down.html
Chinese telegram group: https://t.me/TARKOFFICIAL\_CN
English telegram group: https://t.me/TARKOFFICIAL\_EN
submitted by gswt to u/gswt [link] [comments]

An article shows you the charm of TarK payment system!

An article shows you the charm of TarK payment system!

With the development of the Internet and the digital economy, new payment methods such as WeChat and Alipay have appeared, which has greatly impacted the traditional cash transaction model. In line with the development needs of the token economy, the digital payment system accompanied by block chain technology has become the latest method of asset management.
The rise of each concept is not groundless. Today we take the TarK payment system as an example to explore the charm of digital payment systems in addition to ensuring asset security.
For digital payment systems, there are many categories, such as online payment systems, offline payment systems, cold payment systems, hot payment systems, full-node payment systems, light payment systems, centralized payment systems, hardware payment systems and many other payment systems. The most important indicators for assessing the quality of a payment system are the security performance, the diversity of functions and the convenience of application.
TarK payment system - excellent security performance

https://preview.redd.it/vu8j927eqfp31.png?width=692&format=png&auto=webp&s=8d4f6d757098c92cf9b880d6477976ef7e885061
In 2018, the number of digital payment system users reached 35 million, and the loss of digital assets due to payment system security vulnerabilities was about 1.2 billion US dollars. The digital payment system industry is also facing serious security problems as well as the rapid development.
Tark payment system created the world's first dual-form cold payment system security protection model. It introduced the top technology innovation and multi-person collaborative management function of Silicon Valley in the United States, which greatly reduces the safety factor of the risk of the user's token asset and escorts the user's token assets!
In addition,When the payment system is idle, the network will automatically open the never-on-network mode. It builds transactions and signatures at the cold end, and broadcasts transactions at the hot end, creating a strong protection shield for the token assets, completely eradicating the network hacking and resisting the asset risks caused by various reasons.
Compared with the traditional token asset payment system, Tark payment system strictly controlled the payment and withdrawal operation, and the two password security management mechanisms of seed password + payment password prevent theft of assets and fraudulent use, cryptographic storage, never touch the network, secure verification and delete after you use.
TarK payment system - with versatile features to meet all your needs
TarK combines cross-chain technology with a payment system to create a digital payment system with more features. Cross-chain technology can be understood as a bridge connecting each blockchain to meet asset flow, information intercommunication and application coordination between different blockchains. If the cross-chain is not resolved, the major blockchains will be isolated islands, and there is no exchange of value and data between them.

https://preview.redd.it/9kmneabfqfp31.png?width=692&format=png&auto=webp&s=cca9776e38fca7480b091d9481c3458440834f9a
The emergence of the TarK cross-chain payment system has undoubtedly brought new blood to this technology. Compared with the current situation that a public blockchain and a payment system in the blockchain market, do not exchange information and can only classify storage and transactions, the TarK payment system with cross-chain technology supports multi-currency storage and also supports secure transaction functions. In addition, TarK payment system also has a private key import function, mnemonic words backup function, on-chain matching transaction function, game lobby function, online live broadcast function, on-chain query function.
TarK payment system - think for you, improve user experience
The transaction results are promptly reminded, and the asset is collected in one step! Tark provides offline notification of transaction result reminders. Users do not need to be online for a long time. After the transaction is completed, they can quickly receive the transaction result reminder SMS. Reminders are accepted even when they are offline, and there is no need to worry about asset reception overdue in any scenario.
Multi-platform market and consultation, wealth dividends are at your fingertips! Tark gathers information on mainstream trading platforms, covering global mainstream trading platforms and token market information, including world-renowned portals such as Huobi, Binance, OKEX, Bitcoin Forum, etc., so that you can stay at home to control the trend of more than ten thousand kinds of token assets.
Personal assets are queried in real time, assets are in hand and take leave without delay. Tark provides users with intimate personal asset real-time query function, users can quickly log in to the payment system APP to view personal assets without complicated operations. With a click of your finger, you can quickly know your asset status.
Multi-language currency support, global user linkage. Tark supports English, Korean, Thai, Russian, French, German, and other more than 20 languages worldwide, and all the types of tokens that are circulated worldwide, creating a global settlement payment tool. Language and currency open mode, where you can quickly make storage and payments.
QR code / NFC communication, covering the mainstream of global payment methods. Tark supports mainstream payment methods worldwide, including QR code and NFC two mainstream U payment methods, allowing users to experience different dimensions in the same payment scenario. Diversified payment methods enable multi-level payment storage experience.
Such a payment system, are you sure you are not attracted?
Official download address of Tark payment system: http://www.tarkwallet.com/download/down.html
Chinese telegram group: https://t.me/TARKOFFICIAL\_CN
English telegram group: https://t.me/TARKOFFICIAL\_EN
submitted by gswt to u/gswt [link] [comments]

Decred Journal – August 2018

Note: you can read this on GitHub (link), Medium (link) or old Reddit (link) to see all the links.

Development

dcrd: Version 1.3.0 RC1 (Release Candidate 1) is out! The main features of this release are significant performance improvements, including some that benefit SPV clients. Full release notes and downloads are on GitHub.
The default minimum transaction fee rate was reduced from 0.001 to 0.0001 DCkB. Do not try to send such small fee transactions just yet, until the majority of the network upgrades.
Release process was changed to use release branches and bump version on the master branch at the beginning of a release cycle. Discussed in this chat.
The codebase is ready for the new Go 1.11 version. Migration to vgo module system is complete and the 1.4.0 release will be built using modules. The list of versioned modules and a hierarchy diagram are available here.
The testnet was reset and bumped to version 3.
Comments are welcome for the proposal to implement smart fee estimation, which is important for Lightning Network.
@matheusd recorded a code review video for new Decred developers that explains how tickets are selected for voting.
dcrwallet: Version 1.3.0 RC1 features new SPV sync mode, new ticket buyer, new APIs for Decrediton and a host of bug fixes. On the dev side, dcrwallet also migrated to the new module system.
Decrediton: Version 1.3.0 RC1 adds the new SPV sync mode that syncs roughly 5x faster. The feature is off by default while it receives more testing from experienced users. Other notable changes include a design polish and experimental Politeia integration.
Politeia: Proposal editing is being developed and has a short demo. This will allow proposal owners to edit their proposal in response to community feedback before voting begins. The challenges associated with this feature relate to updating censorship tokens and maintaining a clear history of which version comments were made on. @fernandoabolafio produced this architecture diagram which may be of interest to developers.
@degeri joined to perform security testing of Politeia and found several issues.
dcrdata: mainnet explorer upgraded to v2.1 with several new features. For users: credit/debit tx filter on address page, showing miner fees on coinbase transaction page, estimate yearly ticket rewards on main page, cool new hamburger menu and keyboard navigation. For developers: new chain parameters page, experimental Insight API support, endpoints for coin supply and block rewards, testnet3 support. Lots of minor API changes and frontend tweaks, many bug fixes and robustness improvements.
The upcoming v3.0 entered beta and is deployed on beta.dcrdata.org. Check out the new charts page. Feedback and bug reports are appreciated. Finally, the development version v3.1.0-pre is on alpha.dcrdata.org.
Android: updated to be compatible with the latest SPV code and is syncing, several performance issues are worked on. Details were posted in chat. Alpha testing has started, to participate please join #dev and ask for the APK.
iOS: backend is mostly complete, as well as the front end. Support for devices with smaller screens was improved. What works now: creating and recovering wallets, listing of transactions, receiving DCR, displaying and scanning QR codes, browsing account information, SPV connection to peers, downloading headers. Some bugs need fixing before making testable builds.
Ticket splitting: v0.6.0 beta released with improved fee calculation and multiple bug fixes.
docs: introduced new Governance section that grouped some old articles as well as the new Politeia page.
@Richard-Red created a concept repository sandbox with policy documents, to illustrate the kind of policies that could be approved and amended by Politeia proposals.
decred.org: 8 contributors added and 4 removed, including 2 advisors (discussion here).
decredmarketcap.com is a brand new website that shows the most accurate DCR market data. Clean design, mobile friendly, no javascript required.
Dev activity stats for August: 239 active PRs, 219 commits, 25k added and 11k deleted lines spread across 8 repositories. Contributions came from 2-10 developers per repository. (chart)

Network

Hashrate: went from 54 to 76 PH/s, the low was 50 and the new all-time high is 100 PH/s. BeePool share rose to ~50% while F2Pool shrank to 30%, followed by coinmine.pl at 5% and Luxor at 3%.
Staking: 30-day average ticket price is 95.6 DCR (+3.0) as of Sep 3. During the month, ticket price fluctuated between a low of 92.2 and high of 100.5 DCR. Locked DCR represented between 3.8 and 3.9 million or 46.3-46.9% of the supply.
Nodes: there are 217 public listening and 281 normal nodes per dcred.eu. Version distribution: 2% at v1.4.0(pre) (dev builds), 5% on v1.3.0 (RC1), 62% on v1.2.0 (-5%), 22% on v1.1.2 (-2%), 6% on v1.1.0 (-1%). Almost 69% of nodes are v.1.2.0 and higher and support client filters. Data snapshot of Aug 31.

ASICs

Obelisk posted 3 email updates in August. DCR1 units are reportedly shipping with 1 TH/s hashrate and will be upgraded with firmware to 1.5 TH/s. Batch 1 customers will receive compensation for missed shipment dates, but only after Batch 5 ships. Batch 2-5 customers will be receiving the updated slim design.
Innosilicon announced the new D9+ DecredMaster: 2.8 TH/s at 1,230 W priced $1,499. Specified shipping date was Aug 10-15.
FFMiner DS19 claims 3.1 TH/s for Blake256R14 at 680 W and simultaneously 1.55 TH/s for Blake2B at 410 W, the price is $1,299. Shipping Aug 20-25.
Another newly noticed miner offer is this unit that does 46 TH/s at 2,150 W at the price of $4,720. It is shipping Nov 2018 and the stats look very close to Pangolin Whatsminer DCR (which has now a page on asicminervalue).

Integrations

www.d1pool.com joined the list of stakepools for a total of 16.
Australian CoinTree added DCR trading. The platform supports fiat, there are some limitations during the upgrade to a new system but also no fees in the "Early access mode". On a related note, CoinTree is working on a feature to pay household bills with cryptocurrencies it supports.
Three new OTC desks were added to exchanges page at decred.org.
Two mobile wallets integrated Decred:
Reminder: do your best to understand the security and privacy model before using any wallet software. Points to consider: who controls the seed, does the wallet talk to the nodes directly or via middlemen, is it open source or not?

Adoption

Merchants:

Marketing

Targeted advertising report for August was posted by @timhebel. Facebook appeal is pending, some Google and Twitter campaigns were paused and some updated. Read more here.
Contribution to the @decredproject Twitter account has evolved over the past few months. A #twitter_ops channel is being used on Matrix to collaboratively draft and execute project account tweets (including retweets). Anyone with an interest in contributing to the Twitter account can ask for an invitation to the channel and can start contributing content and ideas there for evaluation by the Twitter group. As a result, no minority or unilateral veto over tweets is possible. (from GitHub)

Events

Attended:
For those willing to help with the events:
BAB: Hey all, we are gearing up for conference season. I have a list of places we hope to attend but need to know who besides @joshuam and @Haon are willing to do public speaking, willing to work booths, or help out at them? You will need to be well versed on not just what is Decred, but the history of Decred etc... DM me if you are interested. (#event_planning)
The Decred project is looking for ambassadors. If you are looking for a fun cryptocurrency to get involved in send me a DM or come talk to me on Decred slack. (@marco_peereboom, longer version here)

Media

Decred Assembly episode 21 is available. @jy-p and lead dcrwallet developer @jrick discussed SPV from Satoshi's whitepaper, how it can be improved upon and what's coming in Decred.
Decred Assembly episodes 1-21 are available in audio only format here.
New instructional articles on stakey.club: Decrediton setup, Deleting the wallet, Installing Go, Installing dcrd, dcrd as a Linux service. Available in both English and Portuguese.
Decred scored #32 in the August issue of Chinese CCID ratings. The evaluation model was explained in this interview.
Satis Group rated Decred highly in their cryptoasset valuation research report (PDF). This was featured by several large media outlets, but some did not link to or omitted Decred entirely, citing low market cap.
Featured articles:
Articles:
Videos:

Community Discussions

Community stats:
Comm systems news:
After another debate about chat systems more people began testing and using Matrix, leading to some gardening on that platform:
Highlights:
Reddit: substantive discussion about Decred cons; ecosystem fund; a thread about voter engagement, Politeia UX and trolling; idea of a social media system for Decred by @michae2xl; how profitable is the Obelisk DCR1.
Chats: cross-chain trading via LN; plans for contractor management system, lower-level decision making and contractor privacy vs transparency for stakeholders; measuring dev activity; what if the network stalls, multiple implementations of Decred for more resilience, long term vision behind those extensive tests and accurate comments in the codebase; ideas for process for policy documents, hosting them in Pi and approving with ticket voting; about SPV wallet disk size, how compact filters work; odds of a wallet fetching a wrong block in SPV; new module system in Go; security of allowing Android app backups; why PoW algo change proposal must be specified in great detail; thoughts about NIPoPoWs and SPV; prerequisites for shipping SPV by default (continued); Decred vs Dash treasury and marketing expenses, spending other people's money; why Decred should not invade a country, DAO and nation states, entangling with nation state is poor resource allocation; how winning tickets are determined and attack vectors; Politeia proposal moderation, contractor clearance, the scale of proposals and decision delegation, initial Politeia vote to approve Politeia itself; chat systems, Matrix/Slack/Discord/RocketChat/Keybase (continued); overview of Korean exchanges; no breaking changes in vgo; why project fund burn rate must keep low; asymptotic behavior of Decred and other ccs, tail emission; count of full nodes and incentives to run them; Politeia proposal translations and multilingual environment.
An unusual event was the chat about double negatives and other oddities in languages in #trading.

Markets

DCR started the month at USD 56 / BTC 0.0073 and had a two week decline. On Aug 14 the whole market took a huge drop and briefly went below USD 200 billion. Bitcoin went below USD 6,000 and top 100 cryptos lost 5-30%. The lowest point coincided with Bitcoin dominance peak at 54.5%. On that day Decred dived -17% and reached the bottom of USD 32 / BTC 0.00537. Since then it went sideways in the USD 35-45 / BTC 0.0054-0.0064 range. Around Aug 24, Huobi showed DCR trading volume above USD 5M and this coincided with a minor recovery.
@ImacallyouJawdy posted some creative analysis based on ticket data.

Relevant External

StopAndDecrypt published an extensive article "ASIC Resistance is Nothing but a Blockchain Buzzword" that is much in line with Decred's stance on ASICs.
The ongoing debates about the possible Sia fork yet again demonstrate the importance of a robust dispute resolution mechanism. Also, we are lucky to have the treasury.
Mark B Lundeberg, who found a vulnerability in atomicswap earlier, published a concept of more private peer-to-peer atomic swaps. (missed in July issue)
Medium took a cautious stance on cryptocurrencies and triggered at least one project to migrate to Ghost (that same project previously migrated away from Slack).
Regulation: Vietnam bans mining equipment imports, China halts crypto events and tightens control of crypto chat groups.
Reddit was hacked by intercepting 2FA codes sent via SMS. The announcement explains the impact. Yet another data breach suggests to think twice before sharing any data with any company and shift to more secure authentication systems.
Intel and x86 dumpsterfire keeps burning brighter. Seek more secure hardware and operating systems for your coins.
Finally, unrelated to Decred but good for a laugh: yetanotherico.com.

About This Issue

This is the 5th issue of Decred Journal. It is mirrored on GitHub, Medium and Reddit. Past issues are available here.
Most information from third parties is relayed directly from source after a minimal sanity check. The authors of Decred Journal have no ability to verify all claims. Please beware of scams and do your own research.
Feedback is appreciated: please comment on Reddit, GitHub or #writers_room on Matrix or Slack.
Contributions are welcome too. Some areas are collecting content, pre-release review or translations to other languages. Check out @Richard-Red's guide how to contribute to Decred using GitHub without writing code.
Credits (Slack names, alphabetical order): bee, Haon, jazzah, Richard-Red and thedecreddigest.
submitted by jet_user to decred [link] [comments]

An article shows you the charm of TarK payment system!

An article shows you the charm of TarK payment system!

With the development of the Internet and the digital economy, new payment methods such as WeChat and Alipay have appeared, which has greatly impacted the traditional cash transaction model. In line with the development needs of the token economy, the digital payment system accompanied by block chain technology has become the latest method of asset management.
The rise of each concept is not groundless. Today we take the TarK payment system as an example to explore the charm of digital payment systems in addition to ensuring asset security.
For digital payment systems, there are many categories, such as online payment systems, offline payment systems, cold payment systems, hot payment systems, full-node payment systems, light payment systems, centralized payment systems, hardware payment systems and many other payment systems. The most important indicators for assessing the quality of a payment system are the security performance, the diversity of functions and the convenience of application.
TarK payment system - excellent security performance

https://preview.redd.it/x7pti5etgvk31.png?width=692&format=png&auto=webp&s=2643207e0d471524ced4ec0c7e3cf753340dd885
In 2018, the number of digital payment system users reached 35 million, and the loss of digital assets due to payment system security vulnerabilities was about 1.2 billion US dollars. The digital payment system industry is also facing serious security problems as well as the rapid development.
Tark payment system created the world's first dual-form cold payment system security protection model. It introduced the top technology innovation and multi-person collaborative management function of Silicon Valley in the United States, which greatly reduces the safety factor of the risk of the user's token asset and escorts the user's token assets!
In addition,When the payment system is idle, the network will automatically open the never-on-network mode. It builds transactions and signatures at the cold end, and broadcasts transactions at the hot end, creating a strong protection shield for the token assets, completely eradicating the network hacking and resisting the asset risks caused by various reasons.
Compared with the traditional token asset payment system, Tark payment system strictly controlled the payment and withdrawal operation, and the two password security management mechanisms of seed password + payment password prevent theft of assets and fraudulent use, cryptographic storage, never touch the network, secure verification and delete after you use.
TarK payment system - with versatile features to meet all your needs
TarK combines cross-chain technology with a payment system to create a digital payment system with more features. Cross-chain technology can be understood as a bridge connecting each blockchain to meet asset flow, information intercommunication and application coordination between different blockchains. If the cross-chain is not resolved, the major blockchains will be isolated islands, and there is no exchange of value and data between them.

https://preview.redd.it/j5jk9ptugvk31.png?width=692&format=png&auto=webp&s=cc7d0fd409c0d8c719ec7fcd5cba77aedf7659f7
The emergence of the TarK cross-chain payment system has undoubtedly brought new blood to this technology. Compared with the current situation that a public blockchain and a payment system in the blockchain market, do not exchange information and can only classify storage and transactions, the TarK payment system with cross-chain technology supports multi-currency storage and also supports secure transaction functions. In addition, TarK payment system also has a private key import function, mnemonic words backup function, on-chain matching transaction function, game lobby function, online live broadcast function, on-chain query function.
TarK payment system - think for you, improve user experience
The transaction results are promptly reminded, and the asset is collected in one step! Tark provides offline notification of transaction result reminders. Users do not need to be online for a long time. After the transaction is completed, they can quickly receive the transaction result reminder SMS. Reminders are accepted even when they are offline, and there is no need to worry about asset reception overdue in any scenario.
Multi-platform market and consultation, wealth dividends are at your fingertips! Tark gathers information on mainstream trading platforms, covering global mainstream trading platforms and token market information, including world-renowned portals such as Huobi, Binance, OKEX, Bitcoin Forum, etc., so that you can stay at home to control the trend of more than ten thousand kinds of token assets.
Personal assets are queried in real time, assets are in hand and take leave without delay. Tark provides users with intimate personal asset real-time query function, users can quickly log in to the payment system APP to view personal assets without complicated operations. With a click of your finger, you can quickly know your asset status.
Multi-language currency support, global user linkage. Tark supports English, Korean, Thai, Russian, French, German, and other more than 20 languages worldwide, and all the types of tokens that are circulated worldwide, creating a global settlement payment tool. Language and currency open mode, where you can quickly make storage and payments.
QR code / NFC communication, covering the mainstream of global payment methods. Tark supports mainstream payment methods worldwide, including QR code and NFC two mainstream U payment methods, allowing users to experience different dimensions in the same payment scenario. Diversified payment methods enable multi-level payment storage experience.
Such a payment system, are you sure you are not attracted?
Official download address of Tark payment system: http://www.tarkwallet.com/download/down.html
Chinese telegram group: https://t.me/TARKOFFICIAL\_CN
English telegram group: https://t.me/TARKOFFICIAL\_EN
submitted by gswt to u/gswt [link] [comments]

An article shows you the charm of TarK payment system!

An article shows you the charm of TarK payment system!

With the development of the Internet and the digital economy, new payment methods such as WeChat and Alipay have appeared, which has greatly impacted the traditional cash transaction model. In line with the development needs of the token economy, the digital payment system accompanied by block chain technology has become the latest method of asset management.
The rise of each concept is not groundless. Today we take the TarK payment system as an example to explore the charm of digital payment systems in addition to ensuring asset security.
For digital payment systems, there are many categories, such as online payment systems, offline payment systems, cold payment systems, hot payment systems, full-node payment systems, light payment systems, centralized payment systems, hardware payment systems and many other payment systems. The most important indicators for assessing the quality of a payment system are the security performance, the diversity of functions and the convenience of application.
TarK payment system - excellent security performance

https://preview.redd.it/m3ex8ij95ih31.png?width=553&format=png&auto=webp&s=98c50ad0b0e96acf34a6ad6e846e16f290b93a65
In 2018, the number of digital payment system users reached 35 million, and the loss of digital assets due to payment system security vulnerabilities was about 1.2 billion US dollars. The digital payment system industry is also facing serious security problems as well as the rapid development.
Tark payment system created the world's first dual-form cold payment system security protection model. It introduced the top technology innovation and multi-person collaborative management function of Silicon Valley in the United States, which greatly reduces the safety factor of the risk of the user's token asset and escorts the user's token assets!
In addition,When the payment system is idle, the network will automatically open the never-on-network mode. It builds transactions and signatures at the cold end, and broadcasts transactions at the hot end, creating a strong protection shield for the token assets, completely eradicating the network hacking and resisting the asset risks caused by various reasons.
Compared with the traditional token asset payment system, Tark payment system strictly controlled the payment and withdrawal operation, and the two password security management mechanisms of seed password + payment password prevent theft of assets and fraudulent use, cryptographic storage, never touch the network, secure verification and delete after you use.
TarK payment system - with versatile features to meet all your needs
TarK combines cross-chain technology with a payment system to create a digital payment system with more features. Cross-chain technology can be understood as a bridge connecting each blockchain to meet asset flow, information intercommunication and application coordination between different blockchains. If the cross-chain is not resolved, the major blockchains will be isolated islands, and there is no exchange of value and data between them.

https://preview.redd.it/ohicnvab5ih31.png?width=553&format=png&auto=webp&s=90e253e8154ddb311c02273b4e1569689e422c3d
The emergence of the TarK cross-chain payment system has undoubtedly brought new blood to this technology. Compared with the current situation that a public blockchain and a payment system in the blockchain market, do not exchange information and can only classify storage and transactions, the TarK payment system with cross-chain technology supports multi-currency storage and also supports secure transaction functions. In addition, TarK payment system also has a private key import function, mnemonic words backup function, on-chain matching transaction function, game lobby function, online live broadcast function, on-chain query function.
TarK payment system - think for you, improve user experience
The transaction results are promptly reminded, and the asset is collected in one step! Tark provides offline notification of transaction result reminders. Users do not need to be online for a long time. After the transaction is completed, they can quickly receive the transaction result reminder SMS. Reminders are accepted even when they are offline, and there is no need to worry about asset reception overdue in any scenario.
Multi-platform market and consultation, wealth dividends are at your fingertips! Tark gathers information on mainstream trading platforms, covering global mainstream trading platforms and token market information, including world-renowned portals such as Huobi, Binance, OKEX, Bitcoin Forum, etc., so that you can stay at home to control the trend of more than ten thousand kinds of token assets.
Personal assets are queried in real time, assets are in hand and take leave without delay. Tark provides users with intimate personal asset real-time query function, users can quickly log in to the payment system APP to view personal assets without complicated operations. With a click of your finger, you can quickly know your asset status.
Multi-language currency support, global user linkage. Tark supports English, Korean, Thai, Russian, French, German, and other more than 20 languages worldwide, and all the types of tokens that are circulated worldwide, creating a global settlement payment tool. Language and currency open mode, where you can quickly make storage and payments.
QR code / NFC communication, covering the mainstream of global payment methods. Tark supports mainstream payment methods worldwide, including QR code and NFC two mainstream U payment methods, allowing users to experience different dimensions in the same payment scenario. Diversified payment methods enable multi-level payment storage experience.
Such a payment system, are you sure you are not attracted?
Official download address of Tark payment system: http://www.tarkwallet.com/download/down.html
Chinese telegram group: https://t.me/TARKOFFICIAL\_CN
English telegram group: https://t.me/TARKOFFICIAL\_EN
submitted by gswt to u/gswt [link] [comments]

An article shows you the charm of TarK wallet!


With the development of the Internet and the digital economy, new payment methods such as WeChat and Alipay have appeared, which has greatly impacted the traditional cash transaction model. In line with the development needs of the token economy, the digital wallet accompanied by block chain technology has become the latest method of asset management.
The rise of each concept is not groundless. Today we take the TarK wallet as an example to explore the charm of digital wallets in addition to ensuring asset security.
For digital wallets, there are many categories, such as online wallets, offline wallets, cold wallets, hot wallets, full-node wallets, light wallets, centralized wallets, hardware wallets and many other wallets. The most important indicators for assessing the quality of a wallet are the security performance, the diversity of functions and the convenience of application.
TarK wallet - excellent security performance
In 2018, the number of digital wallet users reached 35 million, and the loss of digital assets due to wallet security vulnerabilities was about 1.2 billion US dollars. The digital wallet industry is also facing serious security problems as well as the rapid development.
Tark Wallet created the world's first dual-form cold wallet security protection model. It introduced the top technology innovation and multi-person collaborative management function of Silicon Valley in the United States, which greatly reduces the safety factor of the risk of the user's token asset and escorts the user's token assets!
In addition,When the wallet is idle, the network will automatically open the never-on-network mode. It builds transactions and signatures at the cold end, and broadcasts transactions at the hot end, creating a strong protection shield for the token assets, completely eradicating the network hacking and resisting the asset risks caused by various reasons.
Compared with the traditional token asset wallet, Tark wallet strictly controlled the payment and withdrawal operation, and the two password security management mechanisms of seed password + payment password prevent theft of assets and fraudulent use, cryptographic storage, never touch the network, secure verification and delete after you use.
TarK Wallet - with versatile features to meet all your needs
TarK combines cross-chain technology with a wallet to create a digital wallet with more features. Cross-chain technology can be understood as a bridge connecting each blockchain to meet asset flow, information intercommunication and application coordination between different blockchains. If the cross-chain is not resolved, the major blockchains will be isolated islands, and there is no exchange of value and data between them.
The emergence of the TarK cross-chain wallet has undoubtedly brought new blood to this technology. Compared with the current situation that a public blockchain and a wallet in the blockchain market, do not exchange information and can only classify storage and transactions, the TarK wallet with cross-chain technology supports multi-currency storage and also supports secure transaction functions. In addition, TarK wallet also has a private key import function, mnemonic words backup function, on-chain matching transaction function, game lobby function, online live broadcast function, on-chain query function.
TarK wallet - think for you, improve user experience
The transaction results are promptly reminded, and the asset is collected in one step! Tark provides offline notification of transaction result reminders. Users do not need to be online for a long time. After the transaction is completed, they can quickly receive the transaction result reminder SMS. Reminders are accepted even when they are offline, and there is no need to worry about asset reception overdue in any scenario.
Multi-platform market and consultation, wealth dividends are at your fingertips! Tark gathers information on mainstream trading platforms, covering global mainstream trading platforms and token market information, including world-renowned portals such as Huobi, Binance, OKEX, Bitcoin Forum, etc., so that you can stay at home to control the trend of more than ten thousand kinds of token assets.
Personal assets are queried in real time, assets are in hand and take leave without delay. Tark provides users with intimate personal asset real-time query function, users can quickly log in to the wallet APP to view personal assets without complicated operations. With a click of your finger, you can quickly know your asset status.
Multi-language currency support, global user linkage. Tark supports English, Korean, Thai, Russian, French, German, and other more than 20 languages worldwide, and all the types of tokens that are circulated worldwide, creating a global settlement payment tool. Language and currency open mode, where you can quickly make storage and payments.
QR code / NFC communication, covering the mainstream of global payment methods. Tark supports mainstream payment methods worldwide, including QR code and NFC two mainstream U payment methods, allowing users to experience different dimensions in the same payment scenario. Diversified payment methods enable multi-level payment storage experience.
Such a wallet, are you sure you are not attracted?
Official download address of Tark wallet: http://www.tarkwallet.com/download/down.html
Chinese telegram group: https://t.me/TARKOFFICIAL\_CN
English telegram group: https://t.me/TARKOFFICIAL\_EN
submitted by gswt to u/gswt [link] [comments]

CZ Binance interview – What to expect from crypto in 2020 8883675111 - Binance - How to Reset SMS Authentication Binance Crypto Exchange Issues Risk Warning, How To Buy, Sell and Deposit Bitcoin to Binance ( Binance Tutorial) BITCOIN MOVE INCOMING?!  Binance 20x Margin Vs. BitMEX & Bybit how to send and receive bitcoins on blockchain - YouTube How To Send And Receive Bitcoin With Coinbase - YouTube

SMS numbers provider. Receive SMS online from services. You can user real or virtual sms number and create new accounts. Free virtual mobile numbers for SMS receiving. 4G mobile proxy for Instagram, Telegram, Jarvee or other social media (Socks5 and HTTP/HTTPS). Today, I’m going to teach you how to use Binance.Buying and selling cryptocurrency can be stressful, so it’s important to choose an exchange that you can trust.It’s also important to find an exchange that meets your needs, and isn’t too complicated to use.There’s nothing worse than opening an account on an exchange and then realizing you don’t know how it works! A Bitcoin Address is a hashed version of a public key, used as an “account number” to receive bitcoin. If I’ve lost you, don’t worry! For your purposes, all you to need to understand is how to use your Bitcoin address. Simply put, your Bitcoin address can be used by anybody to send you Bitcoins. Below, I’ll show you just how easy it can be to send and receive Bitcoins. Choosing a ... After clicking, the system will ask you to finish facial verification. Click [Begin Verification] to finish facial verification on the computer. Or you can put your mouse on [Use mobile phone] to get the QR code. Scan the QR code via your Binance app to finish the facial verification. Binance cryptocurrency exchange - We operate the worlds biggest bitcoin exchange and altcoin crypto exchange in the world by volume Binance is not sending me my SMS code I don't have the Google authentication I have the SMS and it fails to send me my code. I have tried to follow all the steps in the support page and even sent them an email and they replied back redericting me to the same support page. Binance is a cryptocurrency exchange that’s been gaining momentum over the past few months. Here’s our Binance review. What Is Binance? Binance, found online at Binance.com, is a popular cryptocurrency exchange currently sitting in the top 20 exchanges by volume.. The exchange has particularly strong volume in pairs like NEO/BTC, GAS/BTC, ETH/BTC, and BNB/BTC. Trade over 40 cryptocurrencies and enjoy the lowest trading fees in America. The cryptocurrency exchange Binance offers favorable conditions for the withdrawal of funds. There are restrictions of 2 Bitcoin per day, which is more than enough for an ordinary user. If these limits do not suit you, you can pass the verification and increase the limits to 100 BTC per day. Fortunately, the procedure of identity confirmation is simple and does not take much time. Binance tries its best to improve SMS Auth coverage. However, there are som . English/USD. Language. Currency. How can we help you? Support Center. FAQ. Account Functions. 2 Factor Verification. Not Receiving SMS Auth Codes. Binance. 2018-01-05 04:00. Binance tries its best to improve SMS Auth coverage. However, there are some countries and areas that are currently not supported for this type ...

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CZ Binance interview – What to expect from crypto in 2020

On Binance, you can choose between G-mail and SMS authentication methods to receive the 2FA code. Step 3: Fund your account Once you are done with securing your account by setting up 2FA, the next ... Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Binance CEO Changpeng Zhao (CZ) gives us his thoughts on where cryptocurrency markets, Bitcoin and Binance are headed in 2020. Plus he openly addresses Binance's role in the recent Steem voting ... binance support binance support number binance support phone number binance customer support phone number binance customer support number binance customer ph... In this video tutorial, I show you how to easily send and receive bitcoin from Coinbase to your blockchain wallet.Sign up for Coinbase and get $10 worth of Bitc... Bitcoin Technical Analysis & Bitcoin News Today: Is Binance margin trading the new thing? On Binance you can now trade with up to 20x leverage on many cryptocurrencies. People are leaving BitMEX ...

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