Binance (Börsen App) Review Alles über die Desktop-App!
Syscoin Platform’s Great Reddit Scaling Bake-off Proposal
https://preview.redd.it/rqt2dldyg8e51.jpg?width=1044&format=pjpg&auto=webp&s=777ae9d4fbbb54c3540682b72700fc4ba3de0a44 We are excited to participate and present Syscoin Platform's ideal characteristics and capabilities towards a well-rounded Reddit Community Points solution! Our scaling solution for Reddit Community Points involves 2-way peg interoperability with Ethereum. This will provide a scalable token layer built specifically for speed and high volumes of simple value transfers at a very low cost, while providing sovereign ownership and onchain finality. Token transfers scale by taking advantage of a globally sorting mempool that provides for probabilistically secure assumptions of “as good as settled”. The opportunity here for token receivers is to have an app-layer interactivity on the speed/security tradeoff (99.9999% assurance within 10 seconds). We call this Z-DAG, and it achieves high-throughput across a mesh network topology presently composed of about 2,000 geographically dispersed full-nodes. Similar to Bitcoin, however, these nodes are incentivized to run full-nodes for the benefit of network security, through a bonded validator scheme. These nodes do not participate in the consensus of transactions or block validation any differently than other nodes and therefore do not degrade the security model of Bitcoin’s validate first then trust, across every node. Each token transfer settles on-chain. The protocol follows Bitcoin core policies so it has adequate code coverage and protocol hardening to be qualified as production quality software. It shares a significant portion of Bitcoin’s own hashpower through merged-mining. This platform as a whole can serve token microtransactions, larger settlements, and store-of-value in an ideal fashion, providing probabilistic scalability whilst remaining decentralized according to Bitcoin design. It is accessible to ERC-20 via a permissionless and trust-minimized bridge that works in both directions. The bridge and token platform are currently available on the Syscoin mainnet. This has been gaining recent attention for use by loyalty point programs and stablecoins such as Binance USD.
Syscoin Foundation identified a few paths for Reddit to leverage this infrastructure, each with trade-offs. The first provides the most cost-savings and scaling benefits at some sacrifice of token autonomy. The second offers more preservation of autonomy with a more narrow scope of cost savings than the first option, but savings even so. The third introduces more complexity than the previous two yet provides the most overall benefits. We consider the third as most viable as it enables Reddit to benefit even while retaining existing smart contract functionality. We will focus on the third option, and include the first two for good measure.
Distribution, burns and user-to-user transfers of Reddit Points are entirely carried out on the Syscoin network. This full-on approach to utilizing the Syscoin network provides the most scalability and transaction cost benefits of these scenarios. The tradeoff here is distribution and subscription handling likely migrating away from smart contracts into the application layer.
The Reddit Community Points ecosystem can continue to use existing smart contracts as they are used today on the Ethereum mainchain. Users migrate a portion of their tokens to Syscoin, the scaling network, to gain much lower fees, scalability, and a proven base layer, without sacrificing sovereign ownership. They would use Syscoin for user-to-user transfers. Tips redeemable in ten seconds or less, a high-throughput relay network, and onchain settlement at a block target of 60 seconds.
Integration between Matic Network and Syscoin Platform - similar to Syscoin’s current integration with Ethereum - will provide Reddit Community Points with EVM scalability (including the Memberships ERC777 operator) on the Matic side, and performant simple value transfers, robust decentralized security, and sovereign store-of-value on the Syscoin side. It’s “the best of both worlds”. The trade-off is more complex interoperability.
Syscoin + Matic Integration
Matic and Blockchain Foundry Inc, the public company formed by the founders of Syscoin, recently entered a partnership for joint research and business development initiatives. This is ideal for all parties as Matic Network and Syscoin Platform provide complementary utility. Syscoin offers characteristics for sovereign ownership and security based on Bitcoin’s time-tested model, and shares a significant portion of Bitcoin’s own hashpower. Syscoin’s focus is on secure and scalable simple value transfers, trust-minimized interoperability, and opt-in regulatory compliance for tokenized assets rather than scalability for smart contract execution. On the other hand, Matic Network can provide scalable EVM for smart contract execution. Reddit Community Points can benefit from both. Syscoin + Matic integration is actively being explored by both teams, as it is helpful to Reddit, Ethereum, and the industry as a whole.
Total cost for these 100k transactions: $0.63 USD See the live fee comparison for savings estimation between transactions on Ethereum and Syscoin. Below is a snapshot at time of writing: ETH price: $318.55 ETH gas price: 55.00 Gwei ($0.37) Syscoin price: $0.11 Snapshot of live fee comparison chart Z-DAG provides a more efficient fee-market. A typical Z-DAG transaction costs 0.0000582 SYS. Tokens can be safely redeemed/re-spent within seconds or allowed to settle on-chain beforehand. The costs should remain about this low for microtransactions. Syscoin will achieve further reduction of fees and even greater scalability with offchain payment channels for assets, with Z-DAG as a resilience fallback. New payment channel technology is one of the topics under research by the Syscoin development team with our academic partners at TU Delft. In line with the calculation in the Lightning Networks white paper, payment channels using assets with Syscoin Core will bring theoretical capacity for each person on Earth (7.8 billion) to have five on-chain transactions per year, per person, without requiring anyone to enter a fee market (aka “wait for a block”). This exceeds the minimum LN expectation of two transactions per person, per year; one to exist on-chain and one to settle aggregated value.
Tools to simplify using Syscoin Bridge as a service with dapps and wallets will be released some time after implementation of Syscoin Core 4.2. These will be based upon the same processes which are automated in the current live Sysethereum Dapp that is functioning with the Syscoin mainnet.
The Syscoin Ethereum Bridge is secured by Agent nodes participating in a decentralized and incentivized model that involves roles of Superblock challengers and submitters. This model is open to participation. The benefits here are trust-minimization, permissionless-ness, and potentially less legal/regulatory red-tape than interop mechanisms that involve liquidity providers and/or trading mechanisms. The trade-off is that due to the decentralized nature there are cross-chain settlement times of one hour to cross from Ethereum to Syscoin, and three hours to cross from Syscoin to Ethereum. We are exploring ways to reduce this time while maintaining decentralization via zkp. Even so, an “instant bridge” experience could be provided by means of a third-party liquidity mechanism. That option exists but is not required for bridge functionality today. Typically bridges are used with batch value, not with high frequencies of smaller values, and generally it is advantageous to keep some value on both chains for maximum availability of utility. Even so, the cross-chain settlement time is good to mention here.
Ethereum -> Syscoin: Matic or Ethereum transaction fee for bridge contract interaction, negligible Syscoin transaction fee for minting tokens Syscoin -> Ethereum: Negligible Syscoin transaction fee for burning tokens, 0.01% transaction fee paid to Bridge Agent in the form of the ERC-20, Matic or Ethereum transaction fee for contract interaction.
Zero-Confirmation Directed Acyclic Graph is an instant settlement protocol that is used as a complementary system to proof-of-work (PoW) in the confirmation of Syscoin service transactions. In essence, a Z-DAG is simply a directed acyclic graph (DAG) where validating nodes verify the sequential ordering of transactions that are received in their memory pools. Z-DAG is used by the validating nodes across the network to ensure that there is absolute consensus on the ordering of transactions and no balances are overflowed (no double-spends).
Unique fee-market that is more efficient for microtransaction redemption and settlement
Uses decentralized means to enable tokens with value transfer scalability that is comparable or exceeds that of credit card networks
Provides high throughput and secure fulfillment even if blocks are full
Probabilistic and interactive
99.9999% security assurance within 10 seconds
Can serve payment channels as a resilience fallback that is faster and lower-cost than falling-back directly to a blockchain
Each Z-DAG transaction also settles onchain through Syscoin Core at 60-second block target using SHA-256 Proof of Work consensus
Z-DAG enables the ideal speed/security tradeoff to be determined per use-case in the application layer. It minimizes the sacrifice required to accept and redeem fast transfers/payments while providing more-than-ample security for microtransactions. This is supported on the premise that a Reddit user receiving points does need security yet generally doesn’t want nor need to wait for the same level of security as a nation-state settling an international trade debt. In any case, each Z-DAG transaction settles onchain at a block target of 60 seconds.
Syscoin 3.0 White Paper (4.0 white paper is pending. For improved scalability and less blockchain bloat, some features of v3 no longer exist in current v4: Specifically Marketplace Offers, Aliases, Escrow, Certificates, Pruning, Encrypted Messaging)
16MB block bandwidth per minute assuming segwit witness carrying transactions, and transactions ~200 bytes on average
SHA256 merge mined with Bitcoin
UTXO asset layer, with base Syscoin layer sharing identical security policies as Bitcoin Core
Z-DAG on asset layer, bridge to Ethereum on asset layer
On-chain scaling with prospect of enabling enterprise grade reliable trustless payment processing with on/offchain hybrid solution
Focus only on Simple Value Transfers. MVP of blockchain consensus footprint is balances and ownership of them. Everything else can reduce data availability in exchange for scale (Ethereum 2.0 model). We leave that to other designs, we focus on transfers.
Future integrations of MAST/Taproot to get more complex value transfers without trading off trustlessness or decentralization.
Zero-knowledge Proofs are a cryptographic new frontier. We are dabbling here to generalize the concept of bridging and also verify the state of a chain efficiently. We also apply it in our Digital Identity projects at Blockchain Foundry (a publicly traded company which develops Syscoin softwares for clients). We are also looking to integrate privacy preserving payment channels for off-chain payments through zkSNARK hub & spoke design which does not suffer from the HTLC attack vectors evident on LN. Much of the issues plaguing Lightning Network can be resolved using a zkSNARK design whilst also providing the ability to do a multi-asset payment channel system. Currently we found a showstopper attack (American Call Option) on LN if we were to use multiple-assets. This would not exist in a system such as this.
Web3 and mobile wallets are under active development by Blockchain Foundry Inc as WebAssembly applications and expected for release not long after mainnet deployment of Syscoin Core 4.2. Both of these will be multi-coin wallets that support Syscoin, SPTs, Ethereum, and ERC-20 tokens. The Web3 wallet will provide functionality similar to Metamask. Syscoin Platform and tokens are already integrated with Blockbook. Custom hardware wallet support currently exists via ElectrumSys. First-class HW wallet integration through apps such as Ledger Live will exist after 4.2. Current supported wallets Syscoin Spark Desktop Syscoin-Qt
Monthly Nano News: December 2019 + Year Recap Special
This is what NANO has been up to lately. I don't think I lie if I say it has been quite an amazing year! See you soon and happy new year! Something nice is coming soon that I have been working on for a while, stay tuned..
Nano vs. Dogecoin - a tale of two cryptocurrency for microtransactions (& more)
So, I wanted to write here, because I think Nano community is open-minded, and can think it through - I really like it, and tho I don't have it (only tested it a few times from faucets). As I see both of those CCs are focusing mainly on low-cost payments and microtransaction/micropayments, and "fun to use". Even tho Dogecoin can be though as "meme" and "silly", it's actually used and adopted in many places - far more then Nano (ofc, it's also older and have easier codebase to implement - sharing it with bitcoin), but as I will outline, I think that there are a few things that Nano/Nano community can learn from them. Dogecoin:
no leader - it's the main thing that makes cryptocurrencies decentralized. There is no leader only participants that are driving the development and services
easy to implement codebase - Nano should think, about having some function (like JSON-RPC) similar to Bitcoin's - this way more services could implement it - maybe it is now, but it wasn't
more liquidity - a real winner in cryptocurrencies we can only see, by their behaviour in bear market - Doge is always around 25-35 position on cmc or coinpaprika, because it's really liquid - around 10-11M USD (or equivalent) is sitting in the order books of exchanges around the world (at the bottom I have added a comment, where I have compared it on actual data)
consistent output of 30-40K transactions per day - this is ofc related to better adoption (there is 0 stress tests on Doge)
almost 0 fees - these Nano have better, but Doge is also good in it - although there is a "default" fee of 1 Doge in standard client - you can set in reality as low as 1 sat/byte, so it's usually around 250-500 "dogetoshi" - neglible at best (6e-9 USD)
inflation - to be used as "money" it must be dispersed and spended, and to be spended - it must have a little inflation to encourage spending instead of hoarding. Currently Nano have quite stiff supply, which can hinder it's later growth, and will encourage mainly speculation (fixed supply assets always have rampant speculation and often end in pump and dumps, if they aren't needed or used for anything in real world)
decentralized nodes - 1K+ nodes
it has 0 fees - that's a huge plus for micropayments in any kind (although Natrium hinders it a little, giving only 6 decimals to use - it should be at least 8, like with other bitcoin-based currencies - fortunately other wallets seems to handle 8 decimals on Nano)
instant txs - also a huge plus
decentralized nodes (although Doge also has it - even more because it has about 1K+ nodes)
quite vibrant community
slowly being adopted in a few services - which is a plus
Liquidity comparison: Nano: https://coinpaprika.com/coin/nano-nano/#!liquidity Doge: https://coinpaprika.com/coin/doge-dogecoin/#!liquidity The trend is evident, if you switch to 1y or max on market depth history - Dogecoin have almost +100% growth in this period (from June 2019) and Nano 50% decline. Looking at the data from vcdepth it's even more apparent: https://vcdepth.io/coins/doge-doge https://vcdepth.io/coins/nano-nano As I say, I think Nano can learn from Doge's some, especially regarding exchange's liquidity - that's preventing a lot from happening right now. Binance is the only source, and market maker for Nano, but there should be more - through the ecosystem. What Nano team should do in my opinion is: take part of their funds from dev premine, and use it for liquidity purposes. Cryptocurrencies can't be "run" like startups, and Nano holding shouldn't be treated as equity or cash equivalent, dumping it straight on the books. Binance is making a lot to provide all of their coins with liquid markets (their MMs are one of the best on the market), but I think team can increase liquidity easily by a factor of 2-3x, just by hiring specialistic company, that will manage it. I know coins, that have done it - and it's the main thing that helped them stay relevant. Developing protocol is important, but without liquid market - it doesn't achieve anything (because it won't be used by more people). Especially I would try to improve USDT markets - they are basically USD pairs. PS. I'm not a developer, but I research CCs on daily basis, because it's actually my work. I think my comparison is right, because Doge have achieve much more then being only "meme" currency, and Banano did not (it's only meme currency without liquidity, acceptance, or being really used anywhere).
Exchanges The best way to support XRP is to buy/sell XRP directly with your local currency, not with USDT, ETH, LTC, or BTC. Available XRP pairs - AUD, BRL, CAD, CNY, EUR, GBP, IDR, INR, JPY, KRW, MXN, PHP, RUB, THB, TRY, UAH, USD, ZAR. You can find the complete list of XRP exchanges and supported XRP/fiat pairs Here.
Groestlcoin September 2019 Development Release/Update!
For a more interactive view of changes, click here In our current world; bordering on financial chaos, with tariff wars, Brexit and hyperinflation rife, you can count on Groestlcoin to consistently produce innovation that strikes to take the power away from the few and into the many, even after a full five and a half years of solid development. Here is what the team has already announced in the last 3 months since the last development update:
Groestl Nodes aims to map out and compare the status of the Groestlcoin mainnet and testnet networks. Even though these networks share the same protocol, there is currently no way to directly compare these coins in a single location. These statistics are essential to evaluate the relative health of both networks.
Shows Onion (Tor) nodes
Shows IPv6 nodes
Supports both main net and test net
Node Checker – Check the status of a remote node
Ability to download node data by CSV, JSON or TXT format
Ability to download unique address data by CSV, JSON or TXT format
This is a tool for creating unsigned raw Groestlcoin transactions and also to verify existing transactions by entering in the transaction hex and converting this to a human-readable format to verify that a transaction is correct before it is signed.
Create Raw Unsigned Groestlcoin transactions
Generates a QR code for the transaction
Compatible with most Groestlcoin wallets including but not restricted to Groestlcoin Core and Electrum-GRS
Estimates final signed transaction size
Taking a raw transaction format and shows its Transaction ID, Transaction Inputs and Outputs
AGCore is an Android app designed to make it easier to run a Groestlcoin Core node on always-on Android appliances such as set-top boxes, Android TVs and repurposed tablets/phones. If you are a non-technical user of Groestlcoin and want an Android app that makes it easy to run a Groestlcoin Core node by acting as a wrapper, then AG Core is the right choice for you.
Update to Groestlcoin Core 2.17.2
Switched to native builds via NDK for Groestlcoin Core resulting in a smaller footprint.
Added embedded tor
Added tor pairing support
TOR upgrade bug fixes
Improved blockchain Sync progress using getblockchaininfo verificationprogress
Improved package download progress bar
Added support for external storage access > Android M
Added support for Android Oreo, including new notification mechanism
Bump Fee (RBF) improvements – Implemented a new fee-bump strategy that can add new inputs, so now any transaction can be fee-bumped. The old strategy was to decrease the value of outputs (starting with change). We will now try the new strategy first, and only use the old as a fallback.
Coin Choser improvements
More likely to construct transactions without change (where possible)
Less likely to construct transactions with really small change
Only spend negative effective value coins when beneficial for privacy
Fix long-standing bug that broke wallets with >65k addresses
Windows binaries: Now build the PyInstaller bootloader ourselves, as this seems to reduce anti-virus false positives
Fix performance regression for large wallets
Fix high-DPI issues related to text fields
Trezor – Allow bypassing 'too old firmware' error
Trezor – Use only the Bridge to scan devices if it is available
Hardware wallets – On Win10-1903, some hardware devices with U2F functionality can only be detected with Administrator privileges. A workaround is to run as Admin, or for Trezor to install the Bridge.
The AppImage Linux x86_64 binary and the Windows setup.exe are now built reproducibly.
Fix watch-only wallets that could not bump fee in some scenarios
Faster transaction signing for segwit inputs or really large transactions.
Groestlwallet is designed to protect you from malware, browser security holes, even physical theft. With AES hardware encryption, app sandboxing, keychain and code signatures, groestlwallet represents a significant security advance over web and desktop wallets, and other mobile platforms. Simplicity is groestlwallet's core design principle. Because groestlwallet is "deterministic", your balance and entire transaction history can be restored from just your recovery phrase.
iOS 0.7.3 Changes
Fix BIP70 payments
Updated QR Scanner
Lowered spending limit
Updated DNS Seeds
Fixed URL Scheme
Fixed GRS Name in mailing
Fixed crash upon starting in some scenarios
Android v89 Changes
Use default fee
Republished on Google Play by removing send_sms permissions
Hey all, Its been a while and I have been neglecting the community here on reddit. A lot of things are new, I'll try to keep it as brief as possible. "My client is saying something about an 'IBO' wtf is this shit? Is Blackcoin DOOMED?!" Well, fear you not. Blackcoin is still going forward, but as Blackcoin Lore. The IBO message is relating to rat4's new project of which he is working towards. I wish him all the best on that. The #1 question that I get though, "Should I burn my BLK?" I will give a suggestion that I hope others will find fair. Blacknet is experimental, not yet released, not yet proven, so if you are willing to risk some of your BLK to be a part of something new, then go do so. Should you expect that it gets released? To a degree, yes. Rat4 always has done well. For me personally, I hadn't burnt my BLK as I am skeptical on the distribution and community upon release. However, I do not want to deter anyone from not participating if they can afford the risks associated with new technology. "What in the fak is going on with development? Is Blackcoin DOOMED!?" Janko departed to work on some exclusive blockchain projects of which he had told me about. I'm excited for him and again, wish him all the best. He handed me the title of Lore to continue. Now at the time, I hadn't expected rat4 to also call it off. Lateminer and myself have taken up development under "Lore". "What does that mean for the original wallet? Is Blackcoin DOOMED!?" No, not at all. So this maybe a little confusing but bear with me. Rat4's client will continue as Blackcoin Lore. This is the same as how Bitcoin Core treated Bitcoin upon Satoshi's departure. There will be two identities of Blackcoin. The protocol, and the software. The protocol always and will always belong to you, the community. That will always be shaped in the way that holders of BLK will believe is best for BLK. However Lore will be under direction of us to maintain consistency. To further confuse things, and I'm sorry, Lore previously meant Blackcoin stuff on later Bitcoin. This hasn't been a direction that I had agreed with. Sure the core is stable to that of Bitcoin, but you also share the vulnerabilities. I really do believe that the direction is going forward with rat4's old client and having BLK adapt to it's own challenges. Therefore, Lore is becoming Blackcoin "More" and rat4's client is becoming "Blackcoin Lore". Both of which will be developed by the same team. Consider More as a temporary bridge while Lore goes forward as I understand that there are some serious updates that BLK needs that More provides right now. "I keep up to date and have known about this for the past month or so! What is really going on?" Well, I and others need to eat and build ourselves before we can work on projects such as BLK, especially taking over development which is massive. Lateminer has been working every evening on fixing up More while I had to take a break on updating rat4's client to be more 'modern' and with it. The project shift couldn't of come at a worse time for myself as I have been trying to launch a product for my business and couldn't delegate more time than I'd like to. But, delegating time I am. So updates on this:- Lateminer is pushing a new Blackcoin More release this week.- The new Blackcoin Lore wallet, continuation of the old wallet, has a massive new build and RPC API overhaul.- The RPC API isn't complete yet, I just need to finish it off, then we should expect a new release of BLK Lore. Things are still happening. But thats just development, you can't focus on development and not anything else. "Is Blackcoin going to be delisted from X? Is Blackcoin DOOMED!?" No, likely not. We have strong ties to the best leaders in the industry of which we are currently on.
Bittrex - The most advanced exchange in legal for the US
CoinEgg - Chinese community exchange
ShapeShift - Instant conversion to Blackcoin
cryptoID - Long time friends of Blackcoin for the block explorer with a few BLK specific features
Coinomi - The multi wallet kings from Spain
CoinGecko - Bobby and crew from Malaysia, the best coin market cap tracker. We are planning on doing some giveaways with them shortly.
"Why no Binance?" Well though I do see that Binance is vastly popular, we have to consider legalities of platforms. Binance doesn't have a jurisdiction of which they are lawful to. We don't know where their servers are at. Their employees are mostly private. Those raise red flags to me. That doesn't mean that I am against it. I wouldn't mind putting in a request however, I'm not ready to stick to a strict weekly update that they require until my company's project is launched and new Lore and More is out. At that point, we will update them weekly as well as provide them all information that they require on a regular basis of which we do for every other service of which we are on. "But the ranking of BLK! WTF!?" Yeah, I get that. Honestly, I'm not surprised. BLK really nose dived after China called it quits on crypto. 80% of our volume was there and we had the strongest ties with that community. It was devastating and heart breaking to see it collapse almost overnight. The QQ group and Wechat group is still around, still have some die hards. I'm not surprised it had happened. "We have not heard from you where had you been!?" Well, I had wanted to walk away from BLK a few times. Usually if there is a team taking care of the project, I feel as if I can focus more on my company. Yet, hadn't left. Mostly everyone else left, I'm still here. I have been keeping the twitter and other things going and as well as established the Proof of Stake Alliance with other projects such as PIVX, Peercoin, Komodo, Navcoin, BitBay, Particle, Phore etc. and we all keep regularly in touch almost every day. "So what does the Proof of Stake Alliance do?" Well, all the devs can pool resources together to make the core technology even more sound. While we believe that 3.0 is safe and doesn't have any serious flaws, we do want to improve on it. We are working on a sort of PoS 3.1 which will be basically a total overhaul of the structure of PoS instead of actually changing the security of it. "PoS 3.1??! Sounds exciting!" Yes, we originally were running with the name of PoS 4.0 but, since it isn't a security upgrade, but still massive, we decided not to call it that unless there actually is a reason to update the security to ensure that the coin is protected. "I have a question!" Leave it below. I really don't want to let anyone down, or left feeling insecure with their choice on Blackcoin. Its been a rough few months, but we will all pull through. - Gritt N. Auld
Top 10 of The Biggest Cryptocurrency Hacks and Scams Ever
If you have been around the cryptocurrency industry long enough, you will know that one of the biggest risks faced by users is the loss of funds through hacks on cryptocurrency wallets and exchanges. Online exchanges are prime targets for hackers and thieves on the internet. This is mainly because of the amount of funds that are kept on these platforms. For hackers that have succeeded in stealing funds from such platforms, the amounts are usually huge. As much as individual users try to play their roles in securing their accounts by using personal passwords, PINs and codes, there is a higher layer of security that lies in the hands of the platform providers. Once this is breached, the individual security efforts become irrelevant. Over the years, exchanges and wallets appear to have improved in terms of security as the frequency of hacks and platform breaches have reduced. What used to be a common occurrence in the industry has become a rare development, with hacks now few and far between. Let’s take a look at the top 10 of the biggest cryptocurrency hacks and scams ever.
10. Bitcoin Gold ($18 Million)
In May 2018, the theoretical 51% attack possibility was proven in a heist that saw a breach in Bitcoin Gold which cost the protocol $18 million. In this heist, hackers used 51% raw computing power to seize control of the network and carry out their ulterior plans effectively. Ciphertrace and other security outfits in the ecosystem believe that the algorithm weaknesses in Bitcoin Gold’s Proof of Work (PoW) transaction verification may have enabled the success of the theft.
9. Geth ($20 Million)
In June 2018, the Ethereum client Geth was hacked and ETH worth $20 million was stolen. This incidence was reported by blockchain security firm, Cyphertrace. During the hack, JSON-RPC port 8545 was exploited. This is the port that initiates ETH send transactions. All the ETH wallets that were affected by this breach was drained by the thieves, accumulating to the quoted $20 million equivalence based on the price of ETH at that time.
8. Bancor ($23.5 Million)
In July 2018, about one month after the Geth incident, decentralized cryptocurrency exchange, Bancor was hacked and $23.5 million worth of crypto stolen. This particular event raised some eyebrows in the cryptocurrency industry, redefining the general opinion of decentralized exchanges being prone to hacking. The process involved the exploitation of a security flaw in a wallet that was used to update some of the smart contracts on the exchange. Bancor, which was one of the most successful ICOs of 2017, raising $153 million during its token sale, was forced to shut down after the hack.
7. Coinrail ($40 Million)
Coinrail was hacked in June 2018, and $40 million was stolen from the exchange. The South Korean exchange which ranked among the top 100 exchanges by volume, suspended its services shortly after the hack. According to sources from the exchange, the tokens that were stolen included NPXS tokens from the Pundi X project, ATC from Aston and the NPER project’s NPER token.
Binance ($40.7 Million)
Binance exchange was hacked in May 2019 and 7,000 Bitcoins were stolen from the platform. The value of the Bitcoins stolen at the time was about $40.7 million. To achieve their aim, hackers were able to steal API keys, two-factor codes and some other key information to access the wallets. According to the exchange, the incident impacted only about 2% of its total Bitcoin holdings as all other wallets are secure. Affected wallets were promised a refund through the exchange’s Secure Asset Fund for Users (SAFU) arrangement. This is a policy that the exchange uses to prepare for rainy days. A portion of fees charged on the exchange is set aside in order to ensure that platform users do not bear the brunt during occurrences such as this.
5. Zaif ($60 Million)
Japan-based cryptocurrency exchange Zaif was hacked in September 2018 and $60 million was stolen in the process. The theft was possible after hackers gained authorised access into the exchanges hot wallets, making away with huge amounts of Bitcoin, Bitcoin Cash, and MonaCoin. The exchange’s asset reserve could not cover the loss, therefore it reached an agreement with a Japan-listed firm called Fisco to receive a $44.5 million investment in exchange for a major share of ownership.
4. Bitfinex ($77 Million)
The Bitfinex hack of August 2016 was a popular event that rocked the entire cryptocurrency industry. The hack occurred at a time when cryptocurrencies appeared to be shifting gears in terms of awareness and development. As a matter of fact, the aftermath of the event saw the Bitcoin price drop by 20%. After the hack, Bitfinex issued cryptographic tokens to its users that were affected by the hack, all of which the exchange announced to have bought back by April 2017.
3. BitGrail ($187 Million)
$187 million worth of Nano tokens were stolen from BitGrail in February 2018. The reported theft was announced weeks after the unauthorized transfer was initiated. This information was from evidence retrieved from the Nano blockchain explorer by skeptics. While BitGrail recognized the concerns of it users, it however stated that it is impossible for it to refund the stolen amount.
2. Mt. Gox ($460 Million)
The Mt. Gox scandal remains one of the biggest stains on the cryptocurrency industry. In February 2014, Mt. Gox was hacked and as much as $460 million was stolen from the exchange. In the wake of this, the exchange’s CEO, Mark Karpeles issued a statement that accepted responsibility on behalf of his company. “We had weaknesses in our system, and our bitcoins vanished. We’ve caused trouble and inconvenience to many people, and I feel deeply sorry for what has happened, “ he said. At the time, Mt. Gox was the world’s largest Bitcoin exchange that looked impressive from the outside, but many who claimed to know about the internal workings accused the company of a messy combination of poor management, neglect, and raw inexperience. The size of this event left a huge dent on the reputation of Bitcoin and the crypto industry at large. It took a long time before the market picked up again, and for users to regain confidence in the industry. The exchange has since gone down and ceased to exist.
1. Coincheck ($500 Million)
The biggest theft in the history of the cryptocurrency industry happened in January 2018, when Japan-based cryptocurrency exchange, Coincheck was hacked. A total of NEM tokens worth $500 million were stolen in the process. A statement from the exchange accepted the blame and took responsibility for the breach. According to reports, rather than storing its customers’ assets in offline wallets, the assets were stored in hot wallets that were connected to the internet. Coincheck also reportedly failed to protect the wallets with standard multi-signature security protocols. Having traced the destination of the stolen funds, NEM developers created a tracking tool that would allow exchanges to automatically reject stolen funds.
Hacks and massive theft of cryptocurrencies have contributed to the setback experienced by the technology. Each of the events takes a hit on the confidence of investors and willing participants who may not be sure of how the affected exchanges will handle the situation. The industry is however learning from past experiences, as the frequency of such hacks have reduced, while in some cases, modalities are being put in place to ensure that end users do not bear the brunt of such events, just like the case of Binance. The NEM developers’ response to the Coincheck hack has a way of rendering stolen funds unspendable, as long as other members of the community comply. However, no one knows how long this will last, and if the hackers will be able to nullify the traceability of the stolen coins yet. The action by the developers will discourage hackers and thieves, but is yet to restore value to the end users whose funds have been stolen. For the industry to grow as it should and become stable, security of funds need to be established. Exchanges and developers are continuously making efforts to ensure that funds and transactions within the industry remain safe at all times. http://bitcoinadvisor.info/top-10-of-the-biggest-cryptocurrency-hacks-and-scams-eve?fbclid=IwAR1aKdbjF1HQpFQq3jH6PQptxt7mhXHJWsABPnlN5ZEjmq07ByMEYWvVezM
Exchanges The best way to support XRP is to buy/sell XRP directly with your local currency, not with USDT, ETH, LTC, or BTC. Available XRP pairs - AUD, BRL, CAD, CNY, EUR, GBP, IDR, INR, JPY, KRW, MXN, PHP, RUB, THB, TRY, UAH, USD, ZAR. You can find the complete list of XRP exchanges and supported XRP/fiat pairs Here.
"1) I can backup my wallet by exporting a wallet.dat file. Do I have to do this everytime I receive more BBP? Or just whenever I add a new key? 2) How do I add new keys? 3) Can I generate and see the private key so that I can write it down/print it and store it somewhere safe?" -znffal 1) think of your wallet.dat file as your passbook in a passbook savings account. You have to have that .dat file to be able to access (and prove you SHOULD have access) to the BBP stored in your account addresses. Exporting it once is all you need. 2) Adding new keys? The passphrase (password) you use is the only "key" you would have in an encrypted wallet (besides the .dat file). If you mean new addresses, you can get those by going under File and Sending (or Receving) Addresses and hit "new". 3) Clicking Encrypt Wallet will be where you choose a passphase, I don't know you can see it other than when you enter it. To put a real world example or two. Example One: You don't ever encrypt or backup your wallet. If I borrowed/stole/hacked your computer, I could send all your coins to my wallet (no passphrase). Example Two: You encrypt your wallet with the passphrase "secret" but don't backup the wallet.dat file, then your computer crashes and you lose all your data. Since you didn't have a copy of the wallet.dat file, your coins would be lost. Example Three: You backup your wallet.dat but don't encrypt it. Your computer crashes and all your data is lost, but you re-download the QT program, restore your wallet.dat, all your coins are still in you wallet. But if you lose your USB drive that has the wallet.dat on it, and I find it, I can put your wallet.dat on another computer and send all your coins to my wallet. Example Four: You encrypt your wallet and back up the wallet.dat file. If I hack/borrow your computer, unless I guess your passphrase your coins are safe. If you computer crashes, your can restore your wallet.dat file to another computer and your coins are safe. In short, Encrypt your wallet (passpharse) and then backup (copy) the wallet.dat file to at least two locations." -616westwarmoth "Find your wallet.dat file, copy it to a flash drive or any other secure place. If your computer crashes, you'll always have the wallet.dat and can put it on a new machine. It will have to resync a bit when you do, but you'll never lose your "key" to the wallet. Speaking of keys, you should password protect your wallet and make sure to remember it!" "Yes you must have a copy of the wallet.dat somewhere. So multiple back up copies are a good idea. If you lose the wallet.dat file the coins will be in limbo but there will be no way to recreate the file. One thing to remember is it doesn't matter if the wallet.dat file is "current", it can be 10 years old on a flash drive and you can download a new client, put the wallet.dat file into the machine and you'll be good." -616westwarmoth "In addition to this, whenever you reboot the node after more than 24 hours of being synced, we back your wallet.dat up into the "backups" folder. This is useful if you ever accidentally delete your wallet.dat. Also, if you want a paper backup, you can do a 'dumpprivkey accountaddress' command from the RPC." -Rob "wallet is a collection of private keys" "there are other ways to achieve high security. You can make a new wallet, encrypt it with a long password, send coins to it, put it on a flash drive and put it in cold storage, then download the hard drive cleaning program and erase the wallet.dat sectors from your PC. And of course, keep a printed copy of the private key on paper and put it in a safe. Put the usb in the safe also. Burn a cd rom with the wallet.dat file and put it in the safe." -Rob How to safely back up your wallet https://dashpay.atlassian.net/wiki/spaces/DOC/pages/1867878/How+to+safely+back+up+your+wallet Keep Your Crypto #SAFU (CZ's Tips) https://www.binance.com/en/blog/421499824684900429/Keep-Your-Crypto-SAFU-CZs-Tips References: https://bitcointalk.org/index.php?topic=2042657.msg23955128#msg23955128http://forum.biblepay.org/index.php?topic=27.0https://bitcointalk.org/index.php?topic=2388064.msg27797529#msg27797529 To Read: https://en.bitcoin.it/wiki/Wallethttps://en.bitcoin.it/wiki/Storing_bitcoinshttps://bitcoin.org/en/secure-your-wallet NOTE: As of version 126.96.36.199 we have updated to HD wallets, so you should not need to worry about keypools anymore if you have upgraded "Regarding the Sanctuary, you receive payments always to the same address (key), so the keypool is not consumed for those payments. But when you click to generate a new address on the "Receive" tab, one key will be deducted from the keypool. Also, sometimes new addresses are automatically generated and the keypool is consumed, for example when solo mining and finding a block, a new address could be used for the block reward. You can always check your current keypool size by typing "getwalletinfo" in the RPC console and see "keypoolsize" and "keys_left". It's only concerning if they are a low number and you plan to generate new addresses in your wallet. They start from 1000. If the number gets too low, you can just type "keypoolrefill" to refill them back to 1000 and then you should backup the wallet. But from my experience the wallet automatically refills the keypool from time to time (or after certain actions like transactions), because I see that my wallet file keeps getting larger and the "keys_left" returns to 1000. The only issue is if you actively use your wallet on multiple computers (for example cloud mining or simply sometimes using the wallet on your laptop), then one wallet could refill the keypool with new addresses and the other one will not, or they will generate different new addresses. If I understand this correctly, for example, you could receive a payment on a new address generated in one wallet; your old balance will be there on both wallets, but only the one wallet where you generated the new address would show the new payment. Then you should copy the wallet.dat file to other computers, to update them. If you use the wallet on just one computer, you should just backup the wallet from time to time (or when you see it has increased in size). Qt also backups wallet.dat automatically, those can be found in the folder %AppData%\BiblepayCore\backups, you will see that they also have timestamps in their names and possibly different sizes." -inblue https://bitcointalk.org/index.php?topic=2388064.msg27391534#msg27391534
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