Please use our new /Horizen Subreddit ZenCash is a private, decentralized, and reliable platform for communications, transactions, and publishing. In production using zero-knowledge proofs for anonymous transactions with an encrypted memo field stored on the ZenCash blockchain.
Hi all, Usually I use Cashapp to buy my Bitcoin (weekly, I DCA) and then I store in in Trustwallet, which is a mobile wallet owned by Binance. I noticed they added a "buy BTC" option directly in the TrustWallet app, so I gave it a shot. Unfortunately, they outsource the actual crypto buying process to a sketchy company, which uses misleading tactics. As you can see from this screenshot: https://i.imgur.com/AWjcnro.png US$5000 was to purchase 0.41635 BTC, an amount that I'm happy with. However, at checkout, they change the deal to this: https://i.imgur.com/AWjcnro.png In simple terms, they wanted to sell me 0.43092 BTC for $5000, and then added a $175 "processing" fee. That's more Bitcoin than I wanted to buy, more fiat than I wanted to spend, and it brings the base price of the bitcoin from $11,603, to $12,009, a far larger number. I would have no problem with this if they were upfront about the fees and what they are doing, but now I have sour taste in my mouth. I've been into crypto for a little while. Can you imagine how predatory this would seem to a new user who's going through their first buy? This is my first post, so I hope I did it properly.
I want to provide some context and an update. The above IS an issue. However, it is ONLY an issue if you use MOONPAY to buy crypto through Trust Wallet. The other payment providers do not perform a bait and switch, or perform deceptive techniques. Trust Wallet and Moonpay are still implicated, but Trust Wallet does have other payment providers in their "buy" function that DO NOT bait and switch you. Moonpay, however, does perform the bait and switch. I hope this clarifies things. It's still shame on you moonpay, and shame on you Trust Wallet.
How is your passive income from Crypto going in 2020? So far I have made around $11k plus from approximately 13 or so sources. Details below.
I remember in 2017 there were epic stories of people making fortunes from free crypto-giveaways – for example, the nano faucet gave people fantastic wealth if they held on all year. Then there were things like the various bitcoin forks – great if you cashed in. Now in 2020 there seems to be another uptrend in terms of the ability to get “free crypto” – in various ways. Overtime this can build up to quite a lot. This year I have:
Coinbase earn – I’ve done almost all of these and have had a few referrals. I think I earned maybe $200 or so all up, cashed in BTC, and that BTC is probably around $400
Reddit moons – I have earned 3100 moons, sold for roughly $220
Uniswap – My free 400 tokens are still held, so they are worth maybe $1200
Binance Coin – lots of staking and lottery compensation payments here – for example, I recently sold my Flamingo, Venus and Alpha tokens – maybe $30;
Hex – Yes I know it’s a scam, but I think I bit have a decent little payout in a month when my 90% locked tokens open (won’t say how much as that will reveal my BTC wallet holdings);
Swissborg – A fun little “guess the bitcoin app” that has $50 worth of tokens in it now;
Brave Browser – I’ve earned like $20 from that this year (insert: “Its not much but its honest work gif”);
Uniswap Pools etc – Hard to calculate this one but I’m earning some really great fees and Uni from pooling WBTC and WETH – about 0.5% return a week. Was also previously staking Uni / ETH - I made $1000 in fees but mostly gobbled up by impermanent loss.
Honeyswap – Every 48 hours, I log-in to get free honey from the faucet – around $40 or so;
Survey – I did a phone survey for a local project and got given $100 of free tokens;
Livepeer – No idea what this is but I sold two airdrops for around $20;
Nexus Mutual – Probably the king here. Invested $1200 worth. Received a 58% dividend on the first day of staking (say $700) which I reinvested. That $700 is now $8000 or something ridiculous (and itself earning rewards), plus another 13 NXM (So another $416 on top).
And then lots of rats and mice rewards from things like staking Celsius, staking Tezos referral rewards etc. I even have 3000 of that damn Pi coin thing but don’t know where that is going.
And to top it off a free ledger nano for participation in a private group on FB
(EDIT: I forgot to mention I am currently winning a "pick four" crypto competition that I entered in January where you pick four cryptos and the winner takes the pot. I picked BTC, FTX, SNX and CEL - so that might be another $200 to add to my collection!)
So in all, that is an entire bitcoin just for doing a bunch of crazy stuff. Who said it was difficult to join the 21 million club? So for some people that might be considered a decent pay package for a full time job! What other opportunities do you guys have where you have passive income coming from crypto? Am I missing any obvious ones here?
Ultimate glossary of crypto currency terms, acronyms and abbreviations
Hi everyone, this news on Strike was posted more than 2 weeks ago, but I’m afraid it didn’t get enough traction in my opinion. Original Post on Strike App Supporting On-Chain Txns Exchanges these days should be called what they are: shitcoin casinos. Gemini, Coinbase, Binance, Bittrex, and all the others that sell pump and dump shitcoins, are our enemies. There’s no two ways around it. Coinbase is running Public Relations in full force to make it seem like they support bitcoin development when they want to provide grants for core developers. In reality, they could care less about the development as long as they get their bottom line, which is to pull in suckers. Have you heard the phrase, “If you don’t know who the sucker in the room is, it’s you”? Well you are the sucker every single time if you are trying to trade bitcoin and shitcoins. It’s time to support bitcoin only companies. That means buying ColdCard hardware wallets that have bitcoin only firmware. That means buying from River Financial (will be largest brokerage in the future), Swan Bitcoin (auto DCA with withdrawals only), CashApp, and Fold (bitcoin back on gift card purchases). Anything less is you not supporting bitcoin adoption. I’d like to circle back to the point of this post: what Jack Maller’s Strike App has done is make exchanges completely irrelevant. Gone are the insane and wack percentage fees that cause you to miss out on hodling even more precious sats. Your bank checking account now literally speaks bitcoin. It’s not just a lightning network based app that allows you to pay only lightning network invoices. You can also just pay for the on-chain transaction fee to your legacy address (1), segwit address (3), or native segwit bech 32 address (bc1). So when you plan to stack sats in the United States, I highly recommend you skip the outrageous fees and send bitcoin instantaneously to your ColdCard or whatever hardware wallet you own with ease. Simply deposit the money within the Strike App from your bank checking account, and paste or scan your bitcoin address. Clarify the amount you want to send and tap confirm. I can’t stress this enough - the ONLY fee associated with the purchase is the on-chain transaction fee. I hope this post gets more traction and that word spreads to keep people from getting suckered.
BINANCE! MONEY NOT SAFU! #BINANCE #BTC A story about how your money can be taken from you and in return offer a VIP status and a bonus of $ 1,500. I show everything as objectively as possible Binance users must understand what they are dealing with! I ask you to repost anyone who is not indifferent to such a situation, tomorrow everyone can be in this situation. I have been waiting patiently for a month now and trying to get me back the funds that disappeared from my spot account on 02.16.2020 after a failure of the exchange. I also tried to achieve partial compensation due to which I lost on trading during the failure of the exchange. Correspondence month. From the beginning, Binance wrote that he had technical problems and they will solve everything. After a while, they gave different assumptions about where my funds disappeared, for each case I sent them evidence that the funds were not withdrawn, between the internal accounts did not disappear, etc. In the end, when they ran out of arguments, they simply wrote that they did not bear responsibility, suggested $ 1,500 consolation bonus and VIP Status. https://www.reddit.com/useCryptotrade110/comments/fvbk9z/binance_founds_not_are_safu_part1/?utm_source=share&utm_medium=web2x https://www.reddit.com/useCryptotrade110/comments/fvbmye/binance_founds_not_are_safu_part2/?utm_source=share&utm_medium=web2x
A whole new kind of lightning & fiat interface through debit cards? Announcing lastbit
Soon after Satoshi made his big announcement more than a decade ago, a lot of concerns emerged pointing towards a crucial problem on his solution: scalability. Particularly since Mt. Gox, a lot started to change for Bitcoin. Out in the open, a multitude of crypto exchanges started popping up making Bitcoin and other coins easily accessible to pretty much anyone. Nevertheless, the original concerns on Satoshi’s proposal remained. In parallel and away from the spotlight, a group of passionate developers started crafting the solution to Bitcoin’s scalability problem. Today the solution is here and it’s name is the Lightning Network. Currently, users can access for free a wide range of Bitcoin Lightning wallets. Nevertheless, instant Bitcoin payments are still far from mainstream. Most of these wallets are extremely hard to use and as such are only catered to the most experienced of users. Despite that, the future of Lightning looks bright. As of today, there are over 11K Lightning nodes out there and this number is steadily growing. Lightning’s case of becoming the solution to Bitcoin’s woes looks strong. Holding that as a North star, we started building a solution to combine hardware level security with Lightning to enable instant Bitcoin to fiat transactions on hardware at a POS through debit card emulation.This project was overly ambitious and we quickly realized not enough people cared enough about hardware level security for payments. But the ground we covered was not in vain. During the process of building our hardware solution and talking to our beta users we came across a powerful discovery: enabling small and instant Bitcoin payments with zero fees to mainstream users via Lightning could be the way to finally make Bitcoin a widely and globally used means of payment. During the last few years, we’ve seen titans, such as Coinbase and Binance, emerge. Undeniably, these projects have helped Bitcoin tremendously by raising awareness and making onboarding to the cryptocurrency easy and intuitive globally. Nevertheless, an equivalent figure to position Bitcoin as a globally usable currency via Lightning is yet to come. With this in mind, we built an interoperable payments layer between Bitcoin (Lightning & On-Chain) and Euros (to start with), using payment instruments familiar to mainstream consumers, namely IBAN’s and debit cards. This means, users can move between Bitcoin and Euros in either direction, with a single interface. This will allow users to: -(i) Send and receive Bitcoin payments both form and to Lightning wallets and Bitcoin on-chain wallets; -(ii) Send and receive Euro payments both from and to IBAN’s and debit cards; -(iii) Make Bitcoin payments, both Lightning and on-chain, directly from Euro denominated IBAN’s and/or a debit cards; and -(iv)Top-up Euro denominated debit cards directly with Bitcoin. All of this was carefully built in response to what we heard from the community and as we mention throughout our story. We’ve dedicated the last few years of our lives and the foreseeable future to make this happen and we simply want to make it possible for more people to do things with Bitcoin. TLDR: Lastbit is putting out a beta application that contains a single interface to Bitcoin, Lightning, Euros and debit cards. This app will allow users to move between these payment instruments in any direction they like. Get paid in Euros from a Lightning invoice? Sure. Pay Euros to a Lightning invoice? Sure. Swipe a debit card and pay for your purchase with a Lightning invoice? Sure. And more. *We are still in beta and will soon start to roll-out in Europe
Dragonchain Great Reddit Scaling Bake-Off Public Proposal
Dragonchain Public Proposal TL;DR:
Dragonchain has demonstrated twice Reddit’s entire total daily volume (votes, comments, and postsper Reddit 2019 Year in Review) in a 24-hour demo on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. At the time, in January 2020, the entire cost of the demo was approximately $25K on a single system (transaction fees locked at $0.0001/txn). With current fees (lowest fee $0.0000025/txn), this would cost as little as $625. Watch Joe walk through the entire proposal and answer questions onYouTube. This proposal is also available on the Dragonchain blog.
Hello Reddit and Ethereum community!
I’m Joe Roets, Founder & CEO of Dragonchain. When the team and I first heard about The Great Reddit Scaling Bake-Off we were intrigued. We believe we have the solutions Reddit seeks for its community points system and we have them at scale. For your consideration, we have submitted our proposal below. The team at Dragonchain and I welcome and look forward to your technical questions, philosophical feedback, and fair criticism, to build a scaling solution for Reddit that will empower its users. Because our architecture is unlike other blockchain platforms out there today, we expect to receive many questions while people try to grasp our project. I will answer all questions here in this thread on Reddit, and I've answered some questions in the stream on YouTube. We have seen good discussions so far in the competition. We hope that Reddit’s scaling solution will emerge from The Great Reddit Scaling Bake-Off and that Reddit will have great success with the implementation.
Dragonchain is a robust open source hybrid blockchain platform that has proven to withstand the passing of time since our inception in 2014. We have continued to evolve to harness the scalability of private nodes, yet take full advantage of the security of public decentralized networks, like Ethereum. We have a live, operational, and fully functional Interchain network integrating Bitcoin, Ethereum, Ethereum Classic, and ~700 independent Dragonchain nodes. Every transaction is secured to Ethereum, Bitcoin, and Ethereum Classic. Transactions are immediately usable on chain, and the first decentralization is seen within 20 seconds on Dragon Net. Security increases further to public networks ETH, BTC, and ETC within 10 minutes to 2 hours. Smart contracts can be written in any executable language, offering full freedom to existing developers. We invite any developer to watch the demo, play with our SDK’s, review open source code, and to help us move forward. Dragonchain specializes in scalable loyalty & rewards solutions and has built a decentralized social network on chain, with very affordable transaction costs. This experience can be combined with the insights Reddit and the Ethereum community have gained in the past couple of months to roll out the solution at a rapid pace.
Response and PoC
In The Great Reddit Scaling Bake-Off post, Reddit has asked for a series of demonstrations, requirements, and other considerations. In this section, we will attempt to answer all of these requests.
A live proof of concept showing hundreds of thousands of transactions
On Jan 7, 2020, Dragonchain hosted a 24-hour live demonstration during which a quarter of a billion (250 million+) transactions executed fully on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. This means that every single transaction is secured by, and traceable to these networks. An attack on this system would require a simultaneous attack on all of the Interchained networks. 24 hours in 4 minutes (YouTube): 24 hours in 4 minutes The demonstration was of a single business system, and any user is able to scale this further, by running multiple systems simultaneously. Our goals for the event were to demonstrate a consistent capacity greater than that of Visa over an extended time period. Tooling to reproduce our demo is available here: https://github.com/dragonchain/spirit-bomb
Source code (for on & off-chain components as well tooling used for the PoC). The source code does not have to be shared publicly, but if Reddit decides to use a particular solution it will need to be shared with Reddit at some point.
Dragonchain’s architecture attacks the scalability issue from multiple angles. Dragonchain is a hybrid blockchain platform, wherein every transaction is protected on a business node to the requirements of that business or purpose. A business node may be held completely private or may be exposed or replicated to any level of exposure desired. Every node has its own blockchain and is independently scalable. Dragonchain established Context Based Verification as its consensus model. Every transaction is immediately usable on a trust basis, and in time is provable to an increasing level of decentralized consensus. A transaction will have a level of decentralization to independently owned and deployed Dragonchain nodes (~700 nodes) within seconds, and full decentralization to BTC and ETH within minutes or hours. Level 5 nodes (Interchain nodes) function to secure all transactions to public or otherwise external chains such as Bitcoin and Ethereum. These nodes scale the system by aggregating multiple blocks into a single Interchain transaction on a cadence. This timing is configurable based upon average fees for each respective chain. For detailed information about Dragonchain’s architecture, and Context Based Verification, please refer to the Dragonchain Architecture Document.
An interesting feature of Dragonchain’s network consensus is its economics and scarcity model. Since Dragon Net nodes (L2-L4) are independent staking nodes, deployment to cloud platforms would allow any of these nodes to scale to take on a large percentage of the verification work. This is great for scalability, but not good for the economy, because there is no scarcity, and pricing would develop a downward spiral and result in fewer verification nodes. For this reason, Dragonchain uses TIME as scarcity. TIME is calculated as the number of Dragons held, multiplied by the number of days held. TIME influences the user’s access to features within the Dragonchain ecosystem. It takes into account both the Dragon balance and length of time each Dragon is held. TIME is staked by users against every verification node and dictates how much of the transaction fees are awarded to each participating node for every block. TIME also dictates the transaction fee itself for the business node. TIME is staked against a business node to set a deterministic transaction fee level (see transaction fee table below in Cost section). This is very interesting in a discussion about scaling because it guarantees independence for business implementation. No matter how much traffic appears on the entire network, a business is guaranteed to not see an increased transaction fee rate.
Dragonchain uses Docker and Kubernetes to allow the use of best practices traditional system scaling. Dragonchain offers managed nodes with an easy to use web based console interface. The user may also deploy a Dragonchain node within their own datacenter or favorite cloud platform. Users have deployed Dragonchain nodes on-prem on Amazon AWS, Google Cloud, MS Azure, and other hosting platforms around the world. Any executable code, anything you can write, can be written into a smart contract. This flexibility is what allows us to say that developers with no blockchain experience can use any code language to access the benefits of blockchain. Customers have used NodeJS, Python, Java, and even BASH shell script to write smart contracts on Dragonchain. With Docker containers, we achieve better separation of concerns, faster deployment, higher reliability, and lower response times. We chose Kubernetes for its self-healing features, ability to run multiple services on one server, and its large and thriving development community. It is resilient, scalable, and automated. OpenFaaS allows us to package smart contracts as Docker images for easy deployment. Contract deployment time is now bounded only by the size of the Docker image being deployed but remains fast even for reasonably large images. We also take advantage of Docker’s flexibility and its ability to support any language that can run on x86 architecture. Any image, public or private, can be run as a smart contract using Dragonchain.
Flexibility in Scaling
Dragonchain’s architecture considers interoperability and integration as key features. From inception, we had a goal to increase adoption via integration with real business use cases and traditional systems. We envision the ability for Reddit, in the future, to be able to integrate alternate content storage platforms or other financial services along with the token.
LBRY - To allow users to deploy content natively to LBRY
MakerDAO to allow users to lend small amounts backed by their Reddit community points.
STORJ/SIA to allow decentralized on chain storage of portions of content. These integrations or any other are relatively easy to integrate on Dragonchain with an Interchain implementation.
Cost estimates (on-chain and off-chain) For the purpose of this proposal, we assume that all transactions are on chain (posts, replies, and votes).
On the Dragonchain network, transaction costs are deterministic/predictable. By staking TIME on the business node (as described above) Reddit can reduce transaction costs to as low as $0.0000025 per transaction. Dragonchain Fees Table
How to run it
Building on Dragonchain is simple and requires no blockchain experience. Spin up a business node (L1) in our managed environment (AWS), run it in your own cloud environment, or on-prem in your own datacenter. Clear documentation will walk you through the steps of spinning up your first Dragonchain Level 1 Business node. Getting started is easy...
Download Dragonchain’s dctl
Input three commands into a terminal
Build an image
More information can be found in our Get started documents.
Dragonchain is an open source hybrid platform. Through Dragon Net, each chain combines the power of a public blockchain (like Ethereum) with the privacy of a private blockchain. Dragonchain organizes its network into five separate levels. A Level 1, or business node, is a totally private blockchain only accessible through the use of public/private keypairs. All business logic, including smart contracts, can be executed on this node directly and added to the chain. After creating a block, the Level 1 business node broadcasts a version stripped of sensitive private data to Dragon Net. Three Level 2 Validating nodes validate the transaction based on guidelines determined from the business. A Level 3 Diversity node checks that the level 2 nodes are from a diverse array of locations. A Level 4 Notary node, hosted by a KYC partner, then signs the validation record received from the Level 3 node. The transaction hash is ledgered to the Level 5 public chain to take advantage of the hash power of massive public networks. Dragon Net can be thought of as a “blockchain of blockchains”, where every level is a complete private blockchain. Because an L1 can send to multiple nodes on a single level, proof of existence is distributed among many places in the network. Eventually, proof of existence reaches level 5 and is published on a public network.
Dragonchain is open source and even though the platform is easy enough for developers to code in any language they are comfortable with, we do not have so large a developer community as Ethereum. We would like to see the Ethereum developer community (and any other communities) become familiar with our SDK’s, our solutions, and our platform, to unlock the full potential of our Ethereum Interchain. Long ago we decided to prioritize both Bitcoin and Ethereum Interchains. We envision an ecosystem that encompasses different projects to give developers the ability to take full advantage of all the opportunities blockchain offers to create decentralized solutions not only for Reddit but for all of our current platforms and systems. We believe that together we will take the adoption of blockchain further. We currently have additional Interchain with Ethereum Classic. We look forward to Interchain with other blockchains in the future. We invite all blockchains projects who believe in decentralization and security to Interchain with Dragonchain.
While we only have 700 nodes compared to 8,000 Ethereum and 10,000 Bitcoin nodes. We harness those 18,000 nodes to scale to extremely high levels of security. See Dragonchain metrics.
Some may consider the centralization of Dragonchain’s business nodes as an issue at first glance, however, the model is by design to protect business data. We do not consider this a drawback as these nodes can make any, none, or all data public. Depending upon the implementation, every subreddit could have control of its own business node, for potential business and enterprise offerings, bringing new alternative revenue streams to Reddit.
Costs and resources
Summary of cost & resource information for both on-chain & off-chain components used in the PoC, as well as cost & resource estimates for further scaling. If your PoC is not on mainnet, make note of any mainnet caveats (such as congestion issues).
Every transaction on the PoC system had a transaction fee of $0.0001 (one-hundredth of a cent USD). At 256MM transactions, the demo cost $25,600. With current operational fees, the same demonstration would cost $640 USD. For the demonstration, to achieve throughput to mimic a worldwide payments network, we modeled several clients in AWS and 4-5 business nodes to handle the traffic. The business nodes were tuned to handle higher throughput by adjusting memory and machine footprint on AWS. This flexibility is valuable to implementing a system such as envisioned by Reddit. Given that Reddit’s daily traffic (posts, replies, and votes) is less than half that of our demo, we would expect that the entire Reddit system could be handled on 2-5 business nodes using right-sized containers on AWS or similar environments. Verification was accomplished on the operational Dragon Net network with over 700 independently owned verification nodes running around the world at no cost to the business other than paid transaction fees.
This PoC should scale to the numbers below with minimal costs (both on & off-chain). There should also be a clear path to supporting hundreds of millions of users. Over a 5 day period, your scaling PoC should be able to handle: *100,000 point claims (minting & distributing points) *25,000 subscriptions *75,000 one-off points burning *100,000 transfers
During Dragonchain’s 24 hour demo, the above required numbers were reached within the first few minutes. Reddit’s total activity is 9000% more than Ethereum’s total transaction level. Even if you do not include votes, it is still 700% more than Ethereum’s current volume. Dragonchain has demonstrated that it can handle 250 million transactions a day, and it’s architecture allows for multiple systems to work at that level simultaneously. In our PoC, we demonstrate double the full capacity of Reddit, and every transaction was proven all the way to Bitcoin and Ethereum. Reddit Scaling on Ethereum
Solutions should not depend on any single third-party provider. We prefer solutions that do not depend on specific entities such as Reddit or another provider, and solutions with no single point of control or failure in off-chain components but recognize there are numerous trade-offs to consider
Dragonchain’s architecture calls for a hybrid approach. Private business nodes hold the sensitive data while the validation and verification of transactions for the business are decentralized within seconds and secured to public blockchains within 10 minutes to 2 hours. Nodes could potentially be controlled by owners of individual subreddits for more organic decentralization.
Billing is currently centralized - there is a path to federation and decentralization of a scaled billing solution.
Operational on-premises capabilities
Operational deployment to any datacenter
Over 700 independent Community Verification Nodes with proof of ownership
Operational Interchain (Interoperable to Bitcoin, Ethereum, and Ethereum Classic, open to more)
Usability Scaling solutions should have a simple end user experience.
Users shouldn't have to maintain any extra state/proofs, regularly monitor activity, keep track of extra keys, or sign anything other than their normal transactions
Dragonchain and its customers have demonstrated extraordinary usability as a feature in many applications, where users do not need to know that the system is backed by a live blockchain. Lyceum is one of these examples, where the progress of academy courses is being tracked, and successful completion of courses is rewarded with certificates on chain. Our @Save_The_Tweet bot is popular on Twitter. When used with one of the following hashtags - #please, #blockchain, #ThankYou, or #eternalize the tweet is saved through Eternal to multiple blockchains. A proof report is available for future reference. Other examples in use are DEN, our decentralized social media platform, and our console, where users can track their node rewards, view their TIME, and operate a business node. Examples:
Transactions complete in a reasonable amount of time (seconds or minutes, not hours or days)
All transactions are immediately usable on chain by the system. A transaction begins the path to decentralization at the conclusion of a 5-second block when it gets distributed across 5 separate community run nodes. Full decentralization occurs within 10 minutes to 2 hours depending on which interchain (Bitcoin, Ethereum, or Ethereum Classic) the transaction hits first. Within approximately 2 hours, the combined hash power of all interchained blockchains secures the transaction.
Free to use for end users (no gas fees, or fixed/minimal fees that Reddit can pay on their behalf)
With transaction pricing as low as $0.0000025 per transaction, it may be considered reasonable for Reddit to cover transaction fees for users. All of Reddit's Transactions on Blockchain (month) Community points can be earned by users and distributed directly to their Reddit account in batch (as per Reddit minting plan), and allow users to withdraw rewards to their Ethereum wallet whenever they wish. Withdrawal fees can be paid by either user or Reddit. This model has been operating inside the Dragonchain system since 2018, and many security and financial compliance features can be optionally added. We feel that this capability greatly enhances user experience because it is seamless to a regular user without cryptocurrency experience, yet flexible to a tech savvy user. With regard to currency or token transactions, these would occur on the Reddit network, verified to BTC and ETH. These transactions would incur the $0.0000025 transaction fee. To estimate this fee we use the monthly active Reddit users statista with a 60% adoption rate and an estimated 10 transactions per month average resulting in an approximate $720 cost across the system. Reddit could feasibly incur all associated internal network charges (mining/minting, transfer, burn) as these are very low and controllable fees. Reddit Internal Token Transaction Fees Reddit Ethereum Token Transaction Fees When we consider further the Ethereum fees that might be incurred, we have a few choices for a solution.
Offload all Ethereum transaction fees (user withdrawals) to interested users as they wish to withdraw tokens for external use or sale.
Cover Ethereum transaction fees by aggregating them on a timed schedule. Users would request withdrawal (from Reddit or individual subreddits), and they would be transacted on the Ethereum network every hour (or some other schedule).
In a combination of the above, customers could cover aggregated fees.
Integrate with alternate Ethereum roll up solutions or other proposals to aggregate minting and distribution transactions onto Ethereum.
Users should be able to view their balances & transactions via a blockchain explorer-style interface
From interfaces for users who have no knowledge of blockchain technology to users who are well versed in blockchain terms such as those present in a typical block explorer, a system powered by Dragonchain has flexibility on how to provide balances and transaction data to users. Transactions can be made viewable in an Eternal Proof Report, which displays raw data along with TIME staking information and traceability all the way to Bitcoin, Ethereum, and every other Interchained network. The report shows fields such as transaction ID, timestamp, block ID, multiple verifications, and Interchain proof. See example here. Node payouts within the Dragonchain console are listed in chronological order and can be further seen in either Dragons or USD. See example here. In our social media platform, Dragon Den, users can see, in real-time, their NRG and MTR balances. See example here. A new influencer app powered by Dragonchain, Raiinmaker, breaks down data into a user friendly interface that shows coin portfolio, redeemed rewards, and social scores per campaign. See example here.
Exiting is fast & simple
Withdrawing funds on Dragonchain’s console requires three clicks, however, withdrawal scenarios with more enhanced security features per Reddit’s discretion are obtainable.
Interoperability Compatibility with third party apps (wallets/contracts/etc) is necessary.
Proven interoperability at scale that surpasses the required specifications. Our entire platform consists of interoperable blockchains connected to each other and traditional systems. APIs are well documented. Third party permissions are possible with a simple smart contract without the end user being aware. No need to learn any specialized proprietary language. Any code base (not subsets) is usable within a Docker container. Interoperable with any blockchain or traditional APIs. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js. Please see our source code and API documentation.
Scaling solutions should be extensible and allow third parties to build on top of it Open source and extensible APIs should be well documented and stable
Third-party permissionless integrations should be possible & straightforward Smart contracts are Docker based, can be written in any language, use full language (not subsets), and can therefore be integrated with any system including traditional system APIs. Simple is better. Learning an uncommon or proprietary language should not be necessary.
Advanced knowledge of mathematics, cryptography, or L2 scaling should not be required. Compatibility with common utilities & toolchains is expected. Dragonchain business nodes and smart contracts leverage Docker to allow the use of literally any language or executable code. No proprietary language is necessary. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js.
Bonus Points: Show us how it works. Do you have an idea for a cool new use case for Community Points? Build it!
Community points could be awarded to Reddit users based upon TIME too, whereas the longer someone is part of a subreddit, the more community points someone naturally gained, even if not actively commenting or sharing new posts. A daily login could be required for these community points to be credited. This grants awards to readers too and incentivizes readers to create an account on Reddit if they browse the website often. This concept could also be leveraged to provide some level of reputation based upon duration and consistency of contribution to a community subreddit.
Dragonchain has already built a social media platform that harnesses community involvement. Dragon Den is a decentralized community built on the Dragonchain blockchain platform. Dragon Den is Dragonchain’s answer to fake news, trolling, and censorship. It incentivizes the creation and evaluation of quality content within communities. It could be described as being a shareholder of a subreddit or Reddit in its entirety. The more your subreddit is thriving, the more rewarding it will be. Den is currently in a public beta and in active development, though the real token economy is not live yet. There are different tokens for various purposes. Two tokens are Lair Ownership Rights (LOR) and Lair Ownership Tokens (LOT). LOT is a non-fungible token for ownership of a specific Lair. LOT will only be created and converted from LOR. Energy (NRG) and Matter (MTR) work jointly. Your MTR determines how much NRG you receive in a 24-hour period. Providing quality content, or evaluating content will earn MTR.
Security. Users have full ownership & control of their points.
All community points awarded based upon any type of activity or gift, are secured and provable to all Interchain networks (currently BTC, ETH, ETC). Users are free to spend and withdraw their points as they please, depending on the features Reddit wants to bring into production.
Balances and transactions cannot be forged, manipulated, or blocked by Reddit or anyone else
Users can withdraw their balance to their ERC20 wallet, directly through Reddit. Reddit can cover the fees on their behalf, or the user covers this with a portion of their balance.
Users should own their points and be able to get on-chain ERC20 tokens without permission from anyone else
Through our console users can withdraw their ERC20 rewards. This can be achieved on Reddit too. Here is a walkthrough of our console, though this does not show the quick withdrawal functionality, a user can withdraw at any time. https://www.youtube.com/watch?v=aNlTMxnfVHw
Points should be recoverable to on-chain ERC20 tokens even if all third-parties involved go offline
If necessary, signed transactions from the Reddit system (e.g. Reddit + Subreddit) can be sent to the Ethereum smart contract for minting.
A public, third-party review attesting to the soundness of the design should be available
To our knowledge, at least two large corporations, including a top 3 accounting firm, have conducted positive reviews. These reviews have never been made public, as Dragonchain did not pay or contract for these studies to be released.
Bonus points Public, third-party implementation review available or in progress
Compatibility with HSMs & hardware wallets
For the purpose of this proposal, all tokenization would be on the Ethereum network using standard token contracts and as such, would be able to leverage all hardware wallet and Ethereum ecosystem services.
Minting/distributing tokens is not performed by Reddit directly
This operation can be automated by smart contract on Ethereum. Subreddits can if desired have a role to play.
One off point burning, as well as recurring, non-interactive point burning (for subreddit memberships) should be possible and scalable
This is possible and scalable with interaction between Dragonchain Reddit system and Ethereum token contract(s).
Fully open-source solutions are strongly preferred
Dragonchain is fully open source (see section on Disney release after conclusion).
Whether it is today, or in the future, we would like to work together to bring secure flexibility to the highest standards. It is our hope to be considered by Ethereum, Reddit, and other integrative solutions so we may further discuss the possibilities of implementation. In our public demonstration, 256 million transactions were handled in our operational network on chain in 24 hours, for the low cost of $25K, which if run today would cost $625. Dragonchain’s interoperable foundation provides the atmosphere necessary to implement a frictionless community points system. Thank you for your consideration of our proposal. We look forward to working with the community to make something great!
Disney Releases Blockchain Platform as Open Source
The team at Disney created the Disney Private Blockchain Platform. The system was a hybrid interoperable blockchain platform for ledgering and smart contract development geared toward solving problems with blockchain adoption and usability. All objective evaluation would consider the team’s output a success. We released a list of use cases that we explored in some capacity at Disney, and our input on blockchain standardization as part of our participation in the W3C Blockchain Community Group. https://lists.w3.org/Archives/Public/public-blockchain/2016May/0052.html
In 2016, Roets proposed to release the platform as open source to spread the technology outside of Disney, as others within the W3C group were interested in the solutions that had been created inside of Disney. Following a long process, step by step, the team met requirements for release. Among the requirements, the team had to:
Obtain VP support and approval for the release
Verify ownership of the software to be released
Verify that no proprietary content would be released
Convince the organization that there was a value to the open source community
Convince the organization that there was a value to Disney
Offer the plan for ongoing maintenance of the project outside of Disney
Itemize competing projects
Verify no conflict of interest
Change the project name to not use the name Disney, any Disney character, or any other associated IP - proposed Dragonchain - approved
Obtain legal approval
Approval from corporate, parks, and other business units
Approval from multiple Disney patent groups Copyright holder defined by Disney (Disney Connected and Advanced Technologies)
Trademark searches conducted for the selected name Dragonchain
Obtain IT security approval
Manual review of OSS components conducted
OWASP Dependency and Vulnerability Check Conducted
Obtain technical (software) approval
Offer management, process, and financial plans for the maintenance of the project.
Meet list of items to be addressed before release
Remove all Disney project references and scripts
Create a public distribution list for email communications
Remove Roets’ direct and internal contact information
Create public Slack channel and move from Disney slack channels
Create proper labels for issue tracking
Rename internal private Github repository
Add informative description to Github page
Expand README.md with more specific information
Add information beyond current “Blockchains are Magic”
Add getting started sections and info on cloning/forking the project
Add installation details
Add uninstall process
Add unit, functional, and integration test information
Detail how to contribute and get involved
Describe the git workflow that the project will use
Move to public, non-Disney git repository (Github or Bitbucket)
Obtain Disney Open Source Committee approval for release
On top of meeting the above criteria, as part of the process, the maintainer of the project had to receive the codebase on their own personal email and create accounts for maintenance (e.g. Github) with non-Disney accounts. Given the fact that the project spanned multiple business units, Roets was individually responsible for its ongoing maintenance. Because of this, he proposed in the open source application to create a non-profit organization to hold the IP and maintain the project. This was approved by Disney. The Disney Open Source Committee approved the application known as OSSRELEASE-10, and the code was released on October 2, 2016. Disney decided to not issue a press release. Original OSSRELASE-10 document
It started with sending $20 worth of BTC from Binance to Munn wallet. Got my first confirmation in less than 5 minutes which made it spendable. From there, I topped up my phone with Bitrefill, fed some chickens on https://pollofeed.com/, You can still see seeds in the ground, they're probably sleeping right now:). Then played some Lightning-roulette.com, started with 50c, got it quadrupled then lost it all. After that and while surfing Reddit, saw a post of this guy who newly invested in crypto so I threw him a Silver Award from Bitrefill again. Then I wanted to buy some BTC merch from https://cryptoshirt.io but was expensive, so I used https://fixedfloat.com/ to convert my Sats to ETH to buy a blockchain domain :) FLICKING POWERFUL. Not a single transaction failed or took more than 2 seconds.
11-08 20:35 - 'How is anybody going to regret selling it? if you're at all aware of how you trade Bitcoin you can buy and sell every second of every day, the concept is very simple and if you've been trading long enough you can s...' by /u/billionaireastronaut removed from /r/Bitcoin within 14-24min
''' How is anybody going to regret selling it? if you're at all aware of how you trade Bitcoin you can buy and sell every second of every day, the concept is very simple and if you've been trading long enough you can see the signals a mile away, you buy dips, buy low sell high, it's not brain surgery, that's how people with the most Bitcoin continue to have the most Bitcoin... depends on what your ultimate goal is but even if your ultimate goal is to just have more Bitcoin you can trade it on a daily basis and do that there are bots that will do it for you now. The concept is simple you have two Bitcoin. You sell one at $21,000 you put in $20,000 of that tether or whatever you traded it for, in for a limit by and then you made $1,000 profit right there and you have your two Bitcoin back. Or you buy $21,000 of Bitcoin at $20,000 so you are buying back 1.05 Bitcoin, and now you have 05 more than you started with take the decimal place and move it in whatever direction you need to to suit your financial status. you can buy as little as 10 bucks worth of bitcoin on binance, so like I said add some zeros or subtract them, and that's how you make money with Bitcoin on a daily basis. Saying to converting is stupid or you're going to regret it is some purist statement... And the person who made it probably isn't really holding any Bitcoin at all I would assume. I believe in the philosophy behind Bitcoin, a decentralized digital value storage system is a brilliant concept, you can send money anywhere in the world at any time of day and not have a bank overseeing your transaction or a government. But it sends me into another planet when people are saying you never cash it... then what do you do with it? you just sit there and stare at it? people who are saying that either are don't have any Bitcoin and just are commenting on something they're not familiar enough with to speak about, or they have so much of it they just don't know what to do with it, and if that's the case you can send some my way, here's a wallet address I just generated. I promise you the funds will go towards something awesome like a rocket ship. bc1qdqvxph06hpzpkl8ycqh7sgwhhg3ddhky7757jm ''' Context Link Go1dfish undelete link unreddit undelete link Author: billionaireastronaut
Summary: Everyone knows that when you give your assets to someone else, they always keep them safe. If this is true for individuals, it is certainly true for businesses. Custodians always tell the truth and manage funds properly. They won't have any interest in taking the assets as an exchange operator would. Auditors tell the truth and can't be misled. That's because organizations that are regulated are incapable of lying and don't make mistakes. First, some background. Here is a summary of how custodians make us more secure: Previously, we might give Alice our crypto assets to hold. There were risks:
Alice might take the assets and disappear.
Alice might spend the assets and pretend that she still has them (fractional model).
Alice might store the assets insecurely and they'll get stolen.
Alice might give the assets to someone else by mistake or by force.
Alice might lose access to the assets.
But "no worries", Alice has a custodian named Bob. Bob is dressed in a nice suit. He knows some politicians. And he drives a Porsche. "So you have nothing to worry about!". And look at all the benefits we get:
Alice can't take the assets and disappear (unless she asks Bob or never gives them to Bob).
Alice can't spend the assets and pretend that she still has them. (Unless she didn't give them to Bob or asks him for them.)
Alice can't store the assets insecurely so they get stolen. (After all - she doesn't have any control over the withdrawal process from any of Bob's systems, right?)
Alice can't give the assets to someone else by mistake or by force. (Bob will stop her, right Bob?)
Alice can't lose access to the funds. (She'll always be present, sane, and remember all secrets, right?)
See - all problems are solved! All we have to worry about now is:
Bob might take the assets and disappear.
Bob might spend the assets and pretend that he still has them (fractional model).
Bob might store the assets insecurely and they'll get stolen.
Bob might give the assets to someone else by mistake or by force.
Bob might lose access to the assets.
It's pretty simple. Before we had to trust Alice. Now we only have to trust Alice, Bob, and all the ways in which they communicate. Just think of how much more secure we are! "On top of that", Bob assures us, "we're using a special wallet structure". Bob shows Alice a diagram. "We've broken the balance up and store it in lots of smaller wallets. That way", he assures her, "a thief can't take it all at once". And he points to a historic case where a large sum was taken "because it was stored in a single wallet... how stupid". "Very early on, we used to have all the crypto in one wallet", he said, "and then one Christmas a hacker came and took it all. We call him the Grinch. Now we individually wrap each crypto and stick it under a binary search tree. The Grinch has never been back since." "As well", Bob continues, "even if someone were to get in, we've got insurance. It covers all thefts and even coercion, collusion, and misplaced keys - only subject to the policy terms and conditions." And with that, he pulls out a phone-book sized contract and slams it on the desk with a thud. "Yep", he continues, "we're paying top dollar for one of the best policies in the country!" "Can I read it?' Alice asks. "Sure," Bob says, "just as soon as our legal team is done with it. They're almost through the first chapter." He pauses, then continues. "And can you believe that sales guy Mike? He has the same year Porsche as me. I mean, what are the odds?" "Do you use multi-sig?", Alice asks. "Absolutely!" Bob replies. "All our engineers are fully trained in multi-sig. Whenever we want to set up a new wallet, we generate 2 separate keys in an air-gapped process and store them in this proprietary system here. Look, it even requires the biometric signature from one of our team members to initiate any withdrawal." He demonstrates by pressing his thumb into the display. "We use a third-party cloud validation API to match the thumbprint and authorize each withdrawal. The keys are also backed up daily to an off-site third-party." "Wow that's really impressive," Alice says, "but what if we need access for a withdrawal outside of office hours?" "Well that's no issue", Bob says, "just send us an email, call, or text message and we always have someone on staff to help out. Just another part of our strong commitment to all our customers!" "What about Proof of Reserve?", Alice asks. "Of course", Bob replies, "though rather than publish any blockchain addresses or signed transaction, for privacy we just do a SHA256 refactoring of the inverse hash modulus for each UTXO nonce and combine the smart contract coefficient consensus in our hyperledger lightning node. But it's really simple to use." He pushes a button and a large green checkmark appears on a screen. "See - the algorithm ran through and reserves are proven." "Wow", Alice says, "you really know your stuff! And that is easy to use! What about fiat balances?" "Yeah, we have an auditor too", Bob replies, "Been using him for a long time so we have quite a strong relationship going! We have special books we give him every year and he's very efficient! Checks the fiat, crypto, and everything all at once!" "We used to have a nice offline multi-sig setup we've been using without issue for the past 5 years, but I think we'll move all our funds over to your facility," Alice says. "Awesome", Bob replies, "Thanks so much! This is perfect timing too - my Porsche got a dent on it this morning. We have the paperwork right over here." "Great!", Alice replies. And with that, Alice gets out her pen and Bob gets the contract. "Don't worry", he says, "you can take your crypto-assets back anytime you like - just subject to our cancellation policy. Our annual management fees are also super low and we don't adjust them often". How many holes have to exist for your funds to get stolen? Just one. Why are we taking a powerful offline multi-sig setup, widely used globally in hundreds of different/lacking regulatory environments with 0 breaches to date, and circumventing it by a demonstrably weak third party layer? And paying a great expense to do so? If you go through the list of breaches in the past 2 years to highly credible organizations, you go through the list of major corporate frauds (only the ones we know about), you go through the list of all the times platforms have lost funds, you go through the list of times and ways that people have lost their crypto from identity theft, hot wallet exploits, extortion, etc... and then you go through this custodian with a fine-tooth comb and truly believe they have value to add far beyond what you could, sticking your funds in a wallet (or set of wallets) they control exclusively is the absolute worst possible way to take advantage of that security. The best way to add security for crypto-assets is to make a stronger multi-sig. With one custodian, what you are doing is giving them your cryptocurrency and hoping they're honest, competent, and flawlessly secure. It's no different than storing it on a really secure exchange. Maybe the insurance will cover you. Didn't work for Bitpay in 2015. Didn't work for Yapizon in 2017. Insurance has never paid a claim in the entire history of cryptocurrency. But maybe you'll get lucky. Maybe your exact scenario will buck the trend and be what they're willing to cover. After the large deductible and hopefully without a long and expensive court battle. And you want to advertise this increase in risk, the lapse of judgement, an accident waiting to happen, as though it's some kind of benefit to customers ("Free institutional-grade storage for your digital assets.")? And then some people are writing to the OSC that custodians should be mandatory for all funds on every exchange platform? That this somehow will make Canadians as a whole more secure or better protected compared with standard air-gapped multi-sig? On what planet? Most of the problems in Canada stemmed from one thing - a lack of transparency. If Canadians had known what a joke Quadriga was - it wouldn't have grown to lose $400m from hard-working Canadians from coast to coast to coast. And Gerald Cotten would be in jail, not wherever he is now (at best, rotting peacefully). EZ-BTC and mister Dave Smilie would have been a tiny little scam to his friends, not a multi-million dollar fraud. Einstein would have got their act together or been shut down BEFORE losing millions and millions more in people's funds generously donated to criminals. MapleChange wouldn't have even been a thing. And maybe we'd know a little more about CoinTradeNewNote - like how much was lost in there. Almost all of the major losses with cryptocurrency exchanges involve deception with unbacked funds. So it's great to see transparency reports from BitBuy and ShakePay where someone independently verified the backing. The only thing we don't have is:
ANY CERTAINTY BALANCES WEREN'T EXCLUDED. Quadriga's largest account was $70m. 80% of funds are in 20% of accounts (Pareto principle). All it takes is excluding a few really large accounts - and nobody's the wiser. A fractional platform can easily pass any audit this way.
ANY VISIBILITY WHATSOEVER INTO THE CUSTODIANS. BitBuy put out their report before moving all the funds to their custodian and ShakePay apparently can't even tell us who the custodian is. That's pretty important considering that basically all of the funds are now stored there.
ANY IDEA ABOUT THE OTHER EXCHANGES. In order for this to be effective, it has to be the norm. It needs to be "unusual" not to know. If obscurity is the norm, then it's super easy for people like Gerald Cotten and Dave Smilie to blend right in.
It's not complicated to validate cryptocurrency assets. They need to exist, they need to be spendable, and they need to cover the total balances. There are plenty of credible people and firms across the country that have the capacity to reasonably perform this validation. Having more frequent checks by different, independent, parties who publish transparent reports is far more valuable than an annual check by a single "more credible/official" party who does the exact same basic checks and may or may not publish anything. Here's an example set of requirements that could be mandated:
First report within 1 month of launching, another within 3 months, and further reports at minimum every 6 months thereafter.
No auditor can be repeated within a 12 month period.
All reports must be public, identifying the auditor and the full methodology used.
All auditors must be independent of the firm being audited with no conflict of interest.
Reports must include the percentage of each asset backed, and how it's backed.
The auditor publishes a hash list, which lists a hash of each customer's information and balances that were included. Hash is one-way encryption so privacy is fully preserved. Every customer can use this to have 100% confidence they were included.
If we want more extensive requirements on audits, these should scale upward based on the total assets at risk on the platform, and whether the platform has loaned their assets out.
There are ways to structure audits such that neither crypto assets nor customer information are ever put at risk, and both can still be properly validated and publicly verifiable. There are also ways to structure audits such that they are completely reasonable for small platforms and don't inhibit innovation in any way. By making the process as reasonable as possible, we can completely eliminate any reason/excuse that an honest platform would have for not being audited. That is arguable far more important than any incremental improvement we might get from mandating "the best of the best" accountants. Right now we have nothing mandated and tons of Canadians using offshore exchanges with no oversight whatsoever. Transparency does not prove crypto assets are safe. CoinTradeNewNote, Flexcoin ($600k), and Canadian Bitcoins ($100k) are examples where crypto-assets were breached from platforms in Canada. All of them were online wallets and used no multi-sig as far as any records show. This is consistent with what we see globally - air-gapped multi-sig wallets have an impeccable record, while other schemes tend to suffer breach after breach. We don't actually know how much CoinTrader lost because there was no visibility. Rather than publishing details of what happened, the co-founder of CoinTrader silently moved on to found another platform - the "most trusted way to buy and sell crypto" - a site that has no information whatsoever (that I could find) on the storage practices and a FAQ advising that “[t]rading cryptocurrency is completely safe” and that having your own wallet is “entirely up to you! You can certainly keep cryptocurrency, or fiat, or both, on the app.” Doesn't sound like much was learned here, which is really sad to see. It's not that complicated or unreasonable to set up a proper hardware wallet. Multi-sig can be learned in a single course. Something the equivalent complexity of a driver's license test could prevent all the cold storage exploits we've seen to date - even globally. Platform operators have a key advantage in detecting and preventing fraud - they know their customers far better than any custodian ever would. The best job that custodians can do is to find high integrity individuals and train them to form even better wallet signatories. Rather than mandating that all platforms expose themselves to arbitrary third party risks, regulations should center around ensuring that all signatories are background-checked, properly trained, and using proper procedures. We also need to make sure that signatories are empowered with rights and responsibilities to reject and report fraud. They need to know that they can safely challenge and delay a transaction - even if it turns out they made a mistake. We need to have an environment where mistakes are brought to the surface and dealt with. Not one where firms and people feel the need to hide what happened. In addition to a knowledge-based test, an auditor can privately interview each signatory to make sure they're not in coercive situations, and we should make sure they can freely and anonymously report any issues without threat of retaliation. A proper multi-sig has each signature held by a separate person and is governed by policies and mutual decisions instead of a hierarchy. It includes at least one redundant signature. For best results, 3of4, 3of5, 3of6, 4of5, 4of6, 4of7, 5of6, or 5of7. History has demonstrated over and over again the risk of hot wallets even to highly credible organizations. Nonetheless, many platforms have hot wallets for convenience. While such losses are generally compensated by platforms without issue (for example Poloniex, Bitstamp, Bitfinex, Gatecoin, Coincheck, Bithumb, Zaif, CoinBene, Binance, Bitrue, Bitpoint, Upbit, VinDAX, and now KuCoin), the public tends to focus more on cases that didn't end well. Regardless of what systems are employed, there is always some level of risk. For that reason, most members of the public would prefer to see third party insurance. Rather than trying to convince third party profit-seekers to provide comprehensive insurance and then relying on an expensive and slow legal system to enforce against whatever legal loopholes they manage to find each and every time something goes wrong, insurance could be run through multiple exchange operators and regulators, with the shared interest of having a reputable industry, keeping costs down, and taking care of Canadians. For example, a 4 of 7 multi-sig insurance fund held between 5 independent exchange operators and 2 regulatory bodies. All Canadian exchanges could pay premiums at a set rate based on their needed coverage, with a higher price paid for hot wallet coverage (anything not an air-gapped multi-sig cold wallet). Such a model would be much cheaper to manage, offer better coverage, and be much more reliable to payout when needed. The kind of coverage you could have under this model is unheard of. You could even create something like the CDIC to protect Canadians who get their trading accounts hacked if they can sufficiently prove the loss is legitimate. In cases of fraud, gross negligence, or insolvency, the fund can be used to pay affected users directly (utilizing the last transparent balance report in the worst case), something which private insurance would never touch. While it's recommended to have official policies for coverage, a model where members vote would fully cover edge cases. (Could be similar to the Supreme Court where justices vote based on case law.) Such a model could fully protect all Canadians across all platforms. You can have a fiat coverage governed by legal agreements, and crypto-asset coverage governed by both multi-sig and legal agreements. It could be practical, affordable, and inclusive. Now, we are at a crossroads. We can happily give up our freedom, our innovation, and our money. We can pay hefty expenses to auditors, lawyers, and regulators year after year (and make no mistake - this cost will grow to many millions or even billions as the industry grows - and it will be borne by all Canadians on every platform because platforms are not going to eat up these costs at a loss). We can make it nearly impossible for any new platform to enter the marketplace, forcing Canadians to use the same stagnant platforms year after year. We can centralize and consolidate the entire industry into 2 or 3 big players and have everyone else fail (possibly to heavy losses of users of those platforms). And when a flawed security model doesn't work and gets breached, we can make it even more complicated with even more people in suits making big money doing the job that blockchain was supposed to do in the first place. We can build a system which is so intertwined and dependent on big government, traditional finance, and central bankers that it's future depends entirely on that of the fiat system, of fractional banking, and of government bail-outs. If we choose this path, as history has shown us over and over again, we can not go back, save for revolution. Our children and grandchildren will still be paying the consequences of what we decided today. Or, we can find solutions that work. We can maintain an open and innovative environment while making the adjustments we need to make to fully protect Canadian investors and cryptocurrency users, giving easy and affordable access to cryptocurrency for all Canadians on the platform of their choice, and creating an environment in which entrepreneurs and problem solvers can bring those solutions forward easily. None of the above precludes innovation in any way, or adds any unreasonable cost - and these three policies would demonstrably eliminate or resolve all 109 historic cases as studied here - that's every single case researched so far going back to 2011. It includes every loss that was studied so far not just in Canada but globally as well. Unfortunately, finding answers is the least challenging part. Far more challenging is to get platform operators and regulators to agree on anything. My last post got no response whatsoever, and while the OSC has told me they're happy for industry feedback, I believe my opinion alone is fairly meaningless. This takes the whole community working together to solve. So please let me know your thoughts. Please take the time to upvote and share this with people. Please - let's get this solved and not leave it up to other people to do. Facts/background/sources (skip if you like):
The inspiration for the paragraph about splitting wallets was an actual quote from a Canadian company providing custodial services in response to the OSC consultation paper: "We believe that it will be in the in best interests of investors to prohibit pooled crypto assets or ‘floats’. Most Platforms pool assets, citing reasons of practicality and expense. The recent hack of the world’s largest Platform – Binance – demonstrates the vulnerability of participants’ assets when such concessions are made. In this instance, the Platform’s entire hot wallet of Bitcoins, worth over $40 million, was stolen, facilitated in part by the pooling of client crypto assets." "the maintenance of participants (and Platform) crypto assets across multiple wallets distributes the related risk and responsibility of security - reducing the amount of insurance coverage required and making insurance coverage more readily obtainable". For the record, their reply also said nothing whatsoever about multi-sig or offline storage.
In addition to the fact that the $40m hack represented only one "hot wallet" of Binance, and they actually had the vast majority of assets in other wallets (including mostly cold wallets), multiple real cases have clearly demonstrated that risk is still present with multiple wallets. Bitfinex, VinDAX, Bithumb, Altsbit, BitPoint, Cryptopia, and just recently KuCoin all had multiple wallets breached all at the same time, and may represent a significantly larger impact on customers than the Binance breach which was fully covered by Binance. To represent that simply having multiple separate wallets under the same security scheme is a comprehensive way to reduce risk is just not true.
Private insurance has historically never covered a single loss in the cryptocurrency space (at least, not one that I was able to find), and there are notable cases where massive losses were not covered by insurance. Bitpay in 2015 and Yapizon in 2017 both had insurance policies that didn't pay out during the breach, even after a lengthly court process. The same insurance that ShakePay is presently using (and announced to much fanfare) was describe by their CEO himself as covering “physical theft of the media where the private keys are held,” which is something that has never historically happened. As was said with regard to the same policy in 2018 - “I don’t find it surprising that Lloyd’s is in this space,” said Johnson, adding that to his mind the challenge for everybody is figuring out how to structure these policies so that they are actually protective. “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.”
The most profitable policy for a private insurance company is one with the most expensive premiums that they never have to pay a claim on. They have no inherent incentive to take care of people who lost funds. It's "cheaper" to take the reputational hit and fight the claim in court. The more money at stake, the more the insurance provider is incentivized to avoid payout. They're not going to insure the assets unless they have reasonable certainty to make a profit by doing so, and they're not going to pay out a massive sum unless it's legally forced. Private insurance is always structured to be maximally profitable to the insurance provider.
The circumvention of multi-sig was a key factor in the massive Bitfinex hack of over $60m of bitcoin, which today still sits being slowly used and is worth over $3b. While Bitfinex used a qualified custodian Bitgo, which was and still is active and one of the industry leaders of custodians, and they set up 2 of 3 multi-sig wallets, the entire system was routed through Bitfinex, such that Bitfinex customers could initiate the withdrawals in a "hot" fashion. This feature was also a hit with the hacker. The multi-sig was fully circumvented.
Bitpay in 2015 was another example of a breach that stole 5,000 bitcoins. This happened not through the exploit of any system in Bitpay, but because the CEO of a company they worked with got their computer hacked and the hackers were able to request multiple bitcoin purchases, which Bitpay honoured because they came from the customer's computer legitimately. Impersonation is a very common tactic used by fraudsters, and methods get more extreme all the time.
A notable case in Canada was the Canadian Bitcoins exploit. Funds were stored on a server in a Rogers Data Center, and the attendee was successfully convinced to reboot the server "in safe mode" with a simple phone call, thus bypassing the extensive security and enabling the theft.
The very nature of custodians circumvents multi-sig. This is because custodians are not just having to secure the assets against some sort of physical breach but against any form of social engineering, modification of orders, fraudulent withdrawal attempts, etc... If the security practices of signatories in a multi-sig arrangement are such that the breach risk of one signatory is 1 in 100, the requirement of 3 independent signatures makes the risk of theft 1 in 1,000,000. Since hackers tend to exploit the weakest link, a comparable custodian has to make the entry and exit points of their platform 10,000 times more secure than one of those signatories to provide equivalent protection. And if the signatories beef up their security by only 10x, the risk is now 1 in 1,000,000,000. The custodian has to be 1,000,000 times more secure. The larger and more complex a system is, the more potential vulnerabilities exist in it, and the fewer people can understand how the system works when performing upgrades. Even if a system is completely secure today, one has to also consider how that system might evolve over time or work with different members.
By contrast, offline multi-signature solutions have an extremely solid record, and in the entire history of cryptocurrency exchange incidents which I've studied (listed here), there has only been one incident (796 exchange in 2015) involving an offline multi-signature wallet. It happened because the customer's bitcoin address was modified by hackers, and the amount that was stolen ($230k) was immediately covered by the exchange operators. Basically, the platform operators were tricked into sending a legitimate withdrawal request to the wrong address because hackers exploited their platform to change that address. Such an issue would not be prevented in any way by the use of a custodian, as that custodian has no oversight whatsoever to the exchange platform. It's practical for all exchange operators to test large withdrawal transactions as a general policy, regardless of what model is used, and general best practice is to diagnose and fix such an exploit as soon as it occurs.
False promises on the backing of funds played a huge role in the downfall of Quadriga, and it's been exposed over and over again (MyCoin, PlusToken, Bitsane, Bitmarket, EZBTC, IDAX). Even today, customers have extremely limited certainty on whether their funds in exchanges are actually being backed or how they're being backed. While this issue is not unique to cryptocurrency exchanges, the complexity of the technology and the lack of any regulation or standards makes problems more widespread, and there is no "central bank" to come to the rescue as in the 2008 financial crisis or during the great depression when "9,000 banks failed".
In addition to fraudulent operations, the industry is full of cases where operators have suffered breaches and not reported them. Most recently, Einstein was the largest case in Canada, where ongoing breaches and fraud were perpetrated against the platform for multiple years and nobody found out until the platform collapsed completely. While fraud and breaches suck to deal with, they suck even more when not dealt with. Lack of visibility played a role in the largest downfalls of Mt. Gox, Cryptsy, and Bitgrail. In some cases, platforms are alleged to have suffered a hack and keep operating without admitting it at all, such as CoinBene.
It surprises some to learn that a cryptographic solution has already existed since 2013, and gained widespread support in 2014 after Mt. Gox. Proof of Reserves is a full cryptographic proof that allows any customer using an exchange to have complete certainty that their crypto-assets are fully backed by the platform in real-time. This is accomplished by proving that assets exist on the blockchain, are spendable, and fully cover customer deposits. It does not prove safety of assets or backing of fiat assets.
If we didn't care about privacy at all, a platform could publish their wallet addresses, sign a partial transaction, and put the full list of customer information and balances out publicly. Customers can each check that they are on the list, that the balances are accurate, that the total adds up, and that it's backed and spendable on the blockchain. Platforms who exclude any customer take a risk because that customer can easily check and see they were excluded. So together with all customers checking, this forms a full proof of backing of all crypto assets.
However, obviously customers care about their private information being published. Therefore, a hash of the information can be provided instead. Hash is one-way encryption. The hash allows the customer to validate inclusion (by hashing their own known information), while anyone looking at the list of hashes cannot determine the private information of any other user. All other parts of the scheme remain fully intact. A model like this is in use on the exchange CoinFloor in the UK.
A Merkle tree can provide even greater privacy. Instead of a list of balances, the balances are arranged into a binary tree. A customer starts from their node, and works their way to the top of the tree. For example, they know they have 5 BTC, they plus 1 other customer hold 7 BTC, they plus 2-3 other customers hold 17 BTC, etc... until they reach the root where all the BTC are represented. Thus, there is no way to find the balances of other individual customers aside from one unidentified customer in this case.
Proposals such as this had the backing of leaders in the community including Nic Carter, Greg Maxwell, and Zak Wilcox. Substantial and significant effort started back in 2013, with massive popularity in 2014. But what became of that effort? Very little. Exchange operators continue to refuse to give visibility. Despite the fact this information can often be obtained through trivial blockchain analysis, no Canadian platform has ever provided any wallet addresses publicly. As described by the CEO of Newton "For us to implement some kind of realtime Proof of Reserves solution, which I'm not opposed to, it would have to ... Preserve our users' privacy, as well as our own. Some kind of zero-knowledge proof". Kraken describes here in more detail why they haven't implemented such a scheme. According to professor Eli Ben-Sasson, when he spoke with exchanges, none were interested in implementing Proof of Reserves.
And yet, Kraken's places their reasoning on a page called "Proof of Reserves". More recently, both BitBuy and ShakePay have released reports titled "Proof of Reserves and Security Audit". Both reports contain disclaimers against being audits. Both reports trust the customer list provided by the platform, leaving the open possibility that multiple large accounts could have been excluded from the process. Proof of Reserves is a blockchain validation where customers see the wallets on the blockchain. The report from Kraken is 5 years old, but they leave it described as though it was just done a few weeks ago. And look at what they expect customers to do for validation. When firms represent something being "Proof of Reserve" when it's not, this is like a farmer growing fruit with pesticides and selling it in a farmers market as organic produce - except that these are people's hard-earned life savings at risk here. Platforms are misrepresenting the level of visibility in place and deceiving the public by their misuse of this term. They haven't proven anything.
Fraud isn't a problem that is unique to cryptocurrency. Fraud happens all the time. Enron, WorldCom, Nortel, Bear Stearns, Wells Fargo, Moser Baer, Wirecard, Bre-X, and Nicola are just some of the cases where frauds became large enough to become a big deal (and there are so many countless others). These all happened on 100% reversible assets despite regulations being in place. In many of these cases, the problems happened due to the over-complexity of the financial instruments. For example, Enron had "complex financial statements [which] were confusing to shareholders and analysts", creating "off-balance-sheet vehicles, complex financing structures, and deals so bewildering that few people could understand them". In cryptocurrency, we are often combining complex financial products with complex technologies and verification processes. We are naïve if we think problems like this won't happen. It is awkward and uncomfortable for many people to admit that they don't know how something works. If we want "money of the people" to work, the solutions have to be simple enough that "the people" can understand them, not so confusing that financial professionals and technology experts struggle to use or understand them.
For those who question the extent to which an organization can fool their way into a security consultancy role, HB Gary should be a great example to look at. Prior to trying to out anonymous, HB Gary was being actively hired by multiple US government agencies and others in the private sector (with glowing testimonials). The published articles and hosted professional security conferences. One should also look at this list of data breaches from the past 2 years. Many of them are large corporations, government entities, and technology companies. These are the ones we know about. Undoubtedly, there are many more that we do not know about. If HB Gary hadn't been "outted" by anonymous, would we have known they were insecure? If the same breach had happened outside of the public spotlight, would it even have been reported? Or would HB Gary have just deleted the Twitter posts, brought their site back up, done a couple patches, and kept on operating as though nothing had happened?
In the case of Quadriga, the facts are clear. Despite past experience with platforms such as MapleChange in Canada and others around the world, no guidance or even the most basic of a framework was put in place by regulators. By not clarifying any sort of legal framework, regulators enabled a situation where a platform could be run by former criminal Mike Dhanini/Omar Patryn, and where funds could be held fully unchecked by one person. At the same time, the lack of regulation deterred legitimate entities from running competing platforms and Quadriga was granted a money services business license for multiple years of operation, which gave the firm the appearance of legitimacy. Regulators did little to protect Canadians despite Quadriga failing to file taxes from 2016 onward. The entire administrative team had resigned and this was public knowledge. Many people had suspicions of what was going on, including Ryan Mueller, who forwarded complaints to the authorities. These were ignored, giving Gerald Cotten the opportunity to escape without justice.
There are multiple issues with the SOC II model including the prohibitive cost (you have to find a third party accounting firm and the prices are not even listed publicly on any sites), the requirement of operating for a year (impossible for new platforms), and lack of any public visibility (SOC II are private reports that aren't shared outside the people in suits).
Securities frameworks are expensive. Sarbanes-Oxley is estimated to cost $5.1 million USD/yr for the average Fortune 500 company in the United States. Since "Fortune 500" represents the top 500 companies, that means well over $2.55 billion USD (~$3.4 billion CAD) is going to people in suits. Isn't the problem of trust and verification the exact problem that the blockchain is supposed to solve?
To use Quadriga as justification for why custodians or SOC II or other advanced schemes are needed for platforms is rather silly, when any framework or visibility at all, or even the most basic of storage policies, would have prevented the whole thing. It's just an embarrassment.
We are now seeing regulators take strong action. CoinSquare in Canada with multi-million dollar fines. BitMex from the US, criminal charges and arrests. OkEx, with full disregard of withdrawals and no communication. Who's next?
We have a unique window today where we can solve these problems, and not permanently destroy innovation with unreasonable expectations, but we need to act quickly. This is a unique historic time that will never come again.
Kể từ khi Bitcoin xuất hiện vào năm 2009, nó đã trở thành cái mà mọi người nghĩ đến đầu tiên khi nhắc đến tiền điện tử hoặc blockchain. Các loại tiền điện tử như Bitcoin có tính biến động cao nhưng chúng dường như không biến mất trừ khi đánh sập toàn bộ hệ thống Internet trên thế giới. Ngày nay một Bitcoin có giá trị hàng nghìn đô la. Khi các loại tiền điện tử như Bitcoin tiếp tục tồn tại hoặc thậm chí tăng giá trị, các cá nhân rất có nhu cầu quan tâm đến việc sở hữu chúng nhưng điều quan trọng là họ muốn biết được cách lưu trữ Bitcoin một cách an toàn. Để đáp ứng nhu cầu của những người muốn đầu tư vào Bitcoin một cách an toàn, chúng tôi đã tập hợp một danh sách các thiết bị lưu trữ và hay còn gọi là các ví tiền ảo uy tín nhất. Có nhiều ví có tính năng rất tốt bao gồm khả năng lưu trữ nhiều loại tiền điện tử hơn mà không chỉ có Bitcoin, cũng như các biện pháp bảo mật bổ sung. Danh sách này không theo thứ tự cụ thể nào khác chỉ có đề cập đến ví nóng trước, nhưng điều đó không có nghĩa là ví nóng tốt hơn. Hiện tại, ví nóng được nhận xét là kém an toàn hơn để thực hiện các giao dịch nhanh chóng và ví lạnh là an toàn hơn để lưu trữ trong thời gian dài hơn. Trước hết chúng ta nên tìm hiểu về các khái niệm này trước khi chọn ví vì đó chính là chìa khóa để chọn được một phương tiện lưu trữ an toàn.
Các loại ví tiền ảo
Có 2 loại ví tiền ảo cơ bản đang được sử dụng trong thị trường lưu trữ tiền ảo.
Hot Wallets – Ví nóng
Ví trực tuyến còn được gọi là ví “nóng”. Ví nóng là ví chạy trên các thiết bị có kết nối internet như máy tính, điện thoại hoặc máy tính bảng. Điều này có thể tạo ra lỗ hổng bảo mật vì những ví này tạo ra khóa riêng cho tiền của bạn trên các thiết bị kết nối internet này. Mặc dù ví nóng có thể rất thuận tiện trong cách bạn có thể truy cập và thực hiện các giao dịch với tài sản của mình một cách nhanh chóng, nhưng chúng cũng thiếu bảo mật. Điều này nghe có vẻ xa vời, nhưng những người không sử dụng đủ bảo mật khi sử dụng các ví nóng này có thể bị đánh cắp tiền. Ví dụ: Khoe khoang trên một diễn đàn công khai như Reddit về số lượng Bitcoin bạn nắm giữ trong khi bạn đang sử dụng ít hoặc không có bảo mật cho ví của mình và lưu trữ nó trong một ví nóng sẽ không phải là điều khôn ngoan. Những ví này được sử dụng cho một lượng nhỏ tiền điện tử. Bạn có thể ví một ví nóng với một tài khoản séc. Sự khôn ngoan về tài chính thông thường cho rằng chỉ giữ tiền tiêu trong tài khoản séc trong khi phần lớn tiền của bạn nằm trong tài khoản tiết kiệm hoặc tài khoản đầu tư khác. Điều tương tự cũng có thể nói đối với ví nóng. Ví nóng bao gồm thiết bị di động, máy tính để bàn, web và hầu hết các ví lưu ký trao đổi. Điều quan trọng cần lưu ý ở đây là việc giữ tiền điện tử trong ví trao đổi không giống như giữ nó trong ví cá nhân của bạn. Ví trao đổi là tài khoản lưu ký do sàn giao dịch cung cấp. Người dùng của loại ví này không phải là người nắm giữ khóa cá nhân của tiền điện tử được giữ trong ví này. Nếu một sự kiện xảy ra khi sàn giao dịch bị tấn công hoặc tài khoản của bạn bị xâm phạm, tiền của bạn sẽ bị mất. Cụm từ “not your keys not your coin” là một khái niệm được lặp lại nhiều trong các diễn đàn tiền điện tử. Việc giữ một lượng lớn tiền điện tử trong bất kỳ ví nóng nào, đặc biệt là tài khoản trao đổi là không khôn ngoan. Mà thay vào đó, bạn nên rút phần lớn tiền về ví “lạnh” cá nhân của mình (giải thích bên dưới). Các “ví” trao đổi bao gồm Coinbase, Gemini, Binance và nhiều loại khác. Mặc dù các ví này được kết nối với Internet, có sự tấn công tiềm ẩn nhưng chúng vẫn rất hữu ích cho khả năng nhanh chóng thực hiện các giao dịch hoặc giao dịch tiền điện tử. https://preview.redd.it/ixb613gcljx51.png?width=800&format=png&auto=webp&s=38b14e9069a3f727908f38abc7f42b21dabbe7f8 Các loại ví tiền ảo
Cold Wallets – Ví lạnh
Loại ví tiếp theo sẽ được đề cập ở đây là ví lạnh. Mô tả đơn giản nhất về ví lạnh là ví không được kết nối với Internet và do đó nguy cơ bị xâm phạm thấp hơn nhiều. Những ví này cũng có thể được gọi là ví ngoại tuyến hoặc ví cứng. Các ví này lưu trữ địa chỉ và khóa cá nhân của người dùng trên một thứ không được kết nối với Internet và thường đi kèm với phần mềm hoạt động song song để người dùng có thể xem danh mục đầu tư của họ mà không gây rủi ro cho khóa cá nhân của họ. Có lẽ cách an toàn nhất để lưu trữ tiền điện tử ngoại tuyến là thông qua ví giấy. Ví giấy là một ví mà bạn có thể tạo ra từ một số trang web nhất định. Sau đó, nó tạo ra cả khóa công khai và khóa riêng tư mà bạn in ra trên một tờ giấy. Khả năng truy cập tiền điện tử trong các địa chỉ này chỉ có thể thực hiện được nếu bạn có mảnh giấy đó. Nhiều người cán mỏng những chiếc ví giấy này và cất chúng trong két an toàn tại ngân hàng hoặc thậm chí trong két sắt trong nhà. Ví giấy không có giao diện người dùng tương ứng ngoài một tờ giấy, vì vậy với mục đích của bài viết này, chúng tôi tập trung vào các phương pháp lưu trữ lạnh khác như ví cứng. Ví cứng thường là một thiết bị USB lưu trữ khóa cá nhân của người dùng một cách an toàn. Điều này có lợi thế hơn so với ví nóng vì nó không bị ảnh hưởng bởi vi-rút có thể có trong máy tính của một người vì khóa riêng không bao giờ tiếp xúc với máy tính được kết nối mạng của bạn hoặc phần mềm có khả năng bị tấn công. Các thiết bị này cũng thường là mã nguồn mở, cho phép cộng đồng xác định độ an toàn của nó thay vì một công ty tuyên bố rằng nó an toàn để sử dụng. Ví lạnh là cách an toàn nhất để lưu trữ Bitcoin hoặc các loại tiền điện tử khác của bạn. Tuy nhiên chúng yêu cầu thêm một chút kiến thức để thiết lập. Điều cần thiết đối với bất kỳ ai quan tâm đến việc sở hữu tiền điện tử là tìm hiểu về cách lưu trữ an toàn và các khái niệm về cả ví nóng và ví lạnh. Một khi bạn nghĩ rằng bạn đã sẵn sàng để tiếp tục tìm hiểu thì các ví được liệt kê dưới đây là một số ví tiền ảo uy tín nhất trong ngành mà chúng tôi đã sưu tầm được.
Exodus – Một trong các ví tiền ảo tốt nhất cho người mới bắt đầu
Loại ví: Ví nóng
Chi phí mua: Miễn phí
Tương thích với ví cứng: Trezor
Trao đổi hợp nhất: Có
Exodus là một ví điện thoại di động và máy tính để bàn có giao diện người dùng rất đơn giản và tích hợp sẵn một sàn giao dịch. Một trong những tính năng phổ biến nhất của Exodus là khả năng hoán đổi giữa một số lượng ngày càng tăng các loại tiền điện tử. Exodus hiện cho phép hoán đổi giữa hơn 100 loại tiền điện tử khác nhau. Với sự đơn giản của nó, ví này rất phù hợp cho những người mới bắt đầu tham gia vào ngành tiền điện tử. Nó cũng có sự hỗ trợ tuyệt vời, đây là một tính năng cần thiết cho những người mới bắt đầu tham gia vào cái mà nhiều người sẽ coi là một thị trường khó hiểu. Mặc dù nó rất tốt cho người mới bắt đầu, nhưng những người dùng cao cấp hơn có thể thấy nó thiếu một số tính năng. Đầu tiên, Exodus là một ví mã nguồn đóng. Điều này đi ngược lại đặc điểm của ý tưởng về Bitcoin và blockchain và có thể tạo ra một số lo ngại về bảo mật vì mã của nó không mở cho mọi người xem. Thay vào đó, người dùng dựa vào nhóm Exodus để đảm bảo không có lỗ hổng nào trong bảo mật ví của họ.Exodus có tùy chọn phí tùy chỉnh ngoài việc tự động đặt phí để đảm bảo giao dịch hoàn tất nhanh chóng. Ưu điểm
Nhiều loại tiền điện tử
Trao đổi tích hợp
Hỗ trợ khách hàng tốt
Mã nguồn đóng
Electrum – Ví tiền ảo tốt nhất cho người dùng nâng cao quan tâm đến Bitcoin
Loại ví: Ví nóng
Chi phí mua: Miễn phí
Tương thích với ví cứng: thiết bị Trezor và Ledger
Trao đổi hợp nhất: Không
Electrum là một trong những ví Bitcoin ban đầu. Nó đã xuất hiện từ năm 2011, hai năm sau khi Bitcoin được tạo ra và đã thay đổi rất ít kể từ đó. Mặc dù ví này còn sơ khai về giao diện người dùng và cam kết chỉ dành cho Bitcoin, nhưng nó lại vượt trội ở chức năng chính này. Electrum cũng phù hợp hơn với người dùng cao cấp do các tùy chọn phức tạp của nó. Electrum sử dụng mã nguồn mở, cho phép người dùng đặt phí giao dịch tùy chỉnh và có tùy chọn để chọn giữa Bitcoin kế thừa và Segwit. Nó cũng cung cấp cho người dùng khả năng xác định mức độ bảo mật mà họ muốn sử dụng. Ví dụ: bạn có thể tạo ví tiêu chuẩn, ví có xác thực hai yếu tố hoặc ví đa chữ ký. Electrum là ví hoàn hảo cho người nắm giữ Bitcoin cao cấp hơn, những người muốn có các tính năng bảo mật tuyệt vời và khả năng tùy chỉnh trong một bố cục đơn giản. Ưu điểm
Khả năng đặt phí giao dịch tùy chỉnh
Mức độ bảo mật cao hơn hầu hết các ví nóng
Khả năng tùy chỉnh Seed Phrase
Giao diện người dùng rất cơ bản
Chỉ hoạt động với Bitcoin
Không hỗ trợ khách hàng
Mycelium – Một trong các ví tiền ảo tốt nhất cho người dùng di động
Loại ví: Ví nóng
Chi phí mua: Miễn phí
Tương thích với ví cứng: thiết bị Trezor và Ledger
Trao đổi hợp nhất: Có
Mycelium là một ví Bitcoin có mã nguồn mở và chỉ dành cho thiết bị di động. Mycelium hiện chỉ hỗ trợ Bitcoin. Về mặt nào đó, Mycelium khá giống với ví Electrum với một số điểm khác biệt là nó chỉ dành cho thiết bị di động còn giao diện người dùng được làm mới hơn ví Electrum và cũng có một sàn tiền ảo tích hợp. Mycelium giống như Electrum là một trong những ví xuất hiện sớm hơn trong ngành tiền ảo. Cũng giống như Electrum, người dùng có thể đặt phí giao dịch tùy chỉnh để có thể chọn khoảng thời gian bạn sẵn sàng đợi giao dịch được hoàn thành. Mycelium cũng có một số tính năng thú vị hơn như hỗ trợ ví cứng, cho phép người dùng giữ Bitcoin của họ trong thiết bị lưu trữ ngoại tuyến trong khi vẫn sử dụng giao diện người dùng của Mycelium để xem tài sản của họ. Ưu điểm
Khả năng đặt phí giao dịch tùy chỉnh
Khả năng sử dụng ví phần cứng
Phần mềm mã nguồn mở
Chỉ sử dụng được trên điện thoại di động
Chỉ hoạt động với Bitcoin
Có thể gây nhầm lẫn cho người dùng lần đầu
Ledger Nano X – Ví cứng tốt nhất
Loại ví: Ví lạnh
Chi phí mua: $ 119
Trao đổi hợp nhất: Không
Ledger Nano X là ví cứng thế hệ thứ hai của Ledger, một công ty của Pháp đã tham gia vào ngành tiền điện tử trong vài năm. Sản phẩm đầu tiên của Ledger là Ledger Nano S, một trong những ví cứng đầu tiên trên thị trường và đã thống trị ngành tiền ảo trong một số năm. Nano X giống một chiếc USB và kết nối với thiết bị của bạn qua cổng USB hoặc Bluetooth. Điều này có nghĩa là bạn có thể kết nối ví với thiết bị iOS hoặc Android của mình và không cần máy tính. Nó hỗ trợ tốt hơn 1.500 loại tiền điện tử. Danh sách này tiếp tục tăng lên mỗi năm khi cộng đồng yêu cầu hỗ trợ cho các loại tiền điện tử yêu thích của họ. Mặc dù bản thân thiết bị là một chiếc ví cứng lưu trữ lạnh nhưng nhóm Ledger đã tạo ra phần mềm Ledger Live cung cấp giao diện người dùng cho tất cả tài sản của bạn. Điều này cung cấp cho người dùng khả năng thêm ví mới cho các loại tiền điện tử khác nhau vào thiết bị của họ và quản lý danh mục đầu tư của họ. Ví cứng Ledger đã và đang là ví phổ biến nhất trong ngành. Ledger cũng đi kèm với cáp USB Type-C để nó có thể được kết nối với máy tính để bàn hoặc điện thoại thông minh nếu không dùng được Bluetooth. Ưu điểm
Ledger Live có giao diện người dùng trực quan và tiện lợi
Có thể có tới 100 ứng dụng khác nhau được lưu trữ đồng thời
Phần mềm nguồn mở với lợi ích bổ sung là hỗ trợ khách hàng và cộng đồng
Sự thuận tiện khi kết nối Bluetooth
Một số người trong cộng đồng tiền điện tử tin rằng tích hợp Bluetooth là một phương thức tấn công tiềm ẩn, mặc dù có thể lựa chọn USB
Tính năng Bluetooth tăng thêm sự tiện lợi nhưng không mượt mà
Thiết bị Ledger chỉ cho phép bạn lưu trữ đồng thời một số lượng ví nhất định
Trezor Model T – Ví tiền ảo tốt nhất để lưu trữ một số lượng lớn tiền điện tử
Loại ví: Ví lạnh
Chi phí mua: $ 170
Trao đổi hợp nhất: Có
Trezor giống như Ledger, là một cái tên đồng nghĩa với lưu trữ ví lạnh tiền điện tử. Model T của nó là thế hệ thứ hai của ví cứng mà họ đã tạo ra. Trezor Model T rất giống với Ledger, nhưng nó cung cấp cho người dùng khả năng truy cập các sàn giao dịch của bên thứ ba như Changelly và Shapeshift, trực tiếp trong giao diện trang web của nó. Mặc dù điều này khá thuận tiện nhưng nó khó có thể biện minh cho mức giá đắt hơn 170 đô la của mình. Model T sử dụng màn hình cảm ứng, có thể dễ sử dụng cho người mới bắt đầu hơn so với các nút mà Model trước đã sử dụng. Trezor cũng có một khe cắm thẻ MicroSD, cho phép bạn sử dụng thẻ MicroSD để mã hóa mã PIN và bảo vệ thiết bị của bạn khỏi các cuộc tấn công. Giống như Ledger Nano X, Trezor Model T cũng đi kèm với cáp USB Type-C để bạn có thể kết nối với điện thoại thông minh hoặc máy tính để bàn của mình. Hiện tại, Trezor Model T hỗ trợ gần 1.400 loại tiền điện tử khác nhau. Một số người cho rằng Model T an toàn hơn một chút so với Ledger Nano X do kết nối Bluetooth. Điều đó nói rằng, người dùng Ledger có thể chỉ cần tránh sử dụng Bluetooth nếu họ muốn an toàn hơn. Ưu điểm
Giao diện người dùng dựa trên web với các trao đổi được tích hợp sẵn
Một danh sách khổng lồ các loại tiền điện tử được hỗ trợ
Phần mềm mã nguồn mở với lợi ích bổ sung là hỗ trợ khách hàng và cộng đồng
Không giới hạn số lượng ví bạn có thể có đồng thời
Mặc dù nó là một ví cứng tuyệt vời, nhưng giá của nó có vẻ hơi cao
Màn hình cảm ứng nhỏ có thể khiến bạn khó gõ
Ví cứng có thể gây nhầm lẫn cho người dùng lần đầu tiên
Ledger Nano S: Lựa chọntốt nhất cho túi tiền của bạn
Loại ví: Ví lạnh
Chi phí mua: $ 59
Trao đổi hợp nhất: Không
Ledger Nano S là thế hệ ví cứng đầu tiên được Ledger giới thiệu. Nó cũng là một trong những ví cứng đầu tiên từng được tạo ra. Nó tiếp nối ngay sau thế hệ đầu tiên của Trezor. Giống như người kế nhiệm, Nano S tương thích với hàng nghìn loại tiền điện tử. Nano S không đi kèm với cáp USB type-C, vì vậy người dùng sử dụng điện thoại thông minh hiện đại hơn có thể gặp khó khăn khi kết nối với thiết bị của họ. Nano S về cơ bản giống với người kế nhiệm của nó là Nano X ở chỗ nó hỗ trợ cùng một danh sách các loại tiền điện tử và có quyền truy cập vào phần mềm Ledger Live. Các tính năng mà nó thiếu là kết nối Bluetooth và bạn có thể có bao nhiêu ví đồng thời hoạt động trên thiết bị của mình. Với Nano X, người dùng có thể lưu trữ đồng thời 100 ví. Với Nano S, bạn chỉ có thể lưu trữ tối đa 18. Nano S chỉ có đủ dung lượng lưu trữ để tạo ví cho một số lượng tiền điện tử giới hạn tại một thời điểm. Nếu bạn xóa ví để thêm một loại tiền điện tử khác, bạn sẽ không mất tiền điện tử trong ví mà bạn đã xóa. Điều này là do tiền điện tử đó được lưu trữ trực tiếp trên blockchain. Ví đã xóa và tiền điện tử trong đó vẫn có thể được nhìn thấy trong Ledger Live, nhưng ví sẽ không được nhìn thấy trên chính thiết bị Ledger. Điều này có nghĩa là nếu bạn muốn gửi hoặc nhận từ ví bạn đã xóa, bạn có thể phải xóa ví khác để có thêm dung lượng. Điều đó nói rằng, Ledger Nano S vẫn là một chiếc ví tuyệt vời cho những người muốn lưu trữ tiền điện tử của họ một cách an toàn với một mức giá hợp lý. Nó cũng khá dễ sử dụng với Ledger Live, làm cho nó trở thành một sản phẩm lý tưởng cho người mới bắt đầu tìm kiếm cách lưu trữ an toàn và đơn giản cho một số ít tiền điện tử. Ưu điểm
Ledger Live có giao diện người dùng trực quan và tiện lợi
Lưu trữ tiền điện tử an toàn với mức giá thấp
Phần mềm mã nguồn mở với lợi ích bổ sung là hỗ trợ khách hàng và cộng đồng
Chỉ có thể lưu trữ tối đa 18 ví cùng một lúc
Nano S không có tính năng Bluetooth
Các ví tiền ảo ra đời nhằm đáp ứng nhu cầu lưu trữ an toàn các đồng tiền ảo. Vì vậy là một nhà đầu tư thông minh và có tầm nhìn bạn nên biết cách phối hợp để sử dụng các ví tiền ảo này một cách hiệu quả và tiết kiệm nhất. Không nhất thiết lúc nào cũng phải sử dụng ví lạnh và cũng không phải vì tiết kiệm mà chỉ chăm chăm sử dụng ví nóng. Điều quan trọng là không nên để hết trứng vào cùng một rổ, đó là kinh nghiệm lưu trữ và cất giữ tiền mà từ xưa ông cha ta đã chỉ dạy. Đối với tiền ảo cũng không ngoại lệ. Hy vọng bài viết về các ví tiền ảo uy tín trên đây sẽ giúp bạn đọc có thêm kiến thức và thông tin về việc lựa chọn và sử dụng ví tiền ảo. Đừng quên cập nhật mới nhất các tin tức về thị trường tiền ảo trong nước và trên thế giới. Xem thêm: Sàn giao dịch tiền ảo uy tín trên thế giới – Top 4 sàn của năm
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