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Bitcoin Core 0.20.0 Released: What’s New

Bitcoin Core 0.20.0 cleans up the Bitcoin Core codebase, advances hardware wallet integration and strengthens network reliability, among other improvements.

The post Bitcoin Core 0.20.0 Released: What’s New appeared first on Bitcoin Magazine.

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Today marks the official release of Bitcoin Core 0.20.0, the 20th major release of Bitcoin’s original software client launched by Satoshi Nakamoto over 11 years ago. 

Overseen by Bitcoin Core lead maintainer Wladimir van der Laan, this latest major release was developed by over 100 contributors in a span of about six months. The result of more than 500 merged pull requests, Bitcoin Core 0.20.0 mostly cleans up and hardens the Bitcoin Core codebase, advances hardware wallet integration, improves network reliability and includes several other improvements.

Here are some of the more notable changes.

Further Hardware Wallet Integration in GUI

Bitcoin Core has been compatible with hardware wallets since version 0.18.0. However, users cannot yet make transactions with a hardware wallet from Bitcoin Core’s graphical user interface (GUI); they must instead use the command-line interface (CLI) to do that.

Bitcoin Core 0.20.0 is taking a step toward hardware wallet integration into the GUI. Users can now create a transaction without a signature in the Bitcoin Core GUI using the partially signed bitcoin transaction (PSBT) format, and copy it to their clipboard. Once copied, they can transfer the transaction to their hardware wallet to sign it — however, this transfer is not yet automated, and broadcasting the transaction still requires using the CLI.

Future Bitcoin Core releases will continue to advance hardware wallet integration.

Asmap for More Reliable Network Connectivity

Bitcoin Core connects to several peers (other Bitcoin nodes) on the Bitcoin network. Bitcoin Core maps other nodes based on their IP addresses, with the intent to establish connections with peers from various regions and Internet Service Providers (ISPs). If a node receives blocks and transactions from peers located all around the world, it decreases the risk that certain data (like a specific transaction) is withheld.

Bitcoin Core currently maps IP addresses by Network Operators’ Groups. However, several of these groups are actually part of the same Autonomous System (AS): clusters of Network Operators’ Groups that share key internet routes, and therefore potentially share the same routing bottlenecks where data could potentially be filtered.

Bitcoin Core 0.20.0 includes a new configuration option called Asmap, which maps IP addresses by Autonomous System Numbers (ASNs). This ensures that the node connects with peers from a range of different ASs, reducing potential network bottlenecks, thus further limiting the risk that specific data is withheld. (Mapping IP addresses into Network Operators’ Groups remains the default configuration for now, however.)

Removal of BIP61 Reject Messages

Reject Messages (BIP61) are notifications that a node returns when a transaction it received from a peer is rejected, and why. (Perhaps because the transaction is invalid, perhaps because it is considered not to include sufficient fee, perhaps there is another reason for the rejection.)

Bitcoin Core developers do not consider the reject messages very useful, however. Most importantly, peers shouldn’t be assumed to reliably return a Reject Message. In other words, if a node doesn’t receive a Reject Message, it doesn’t necessarily mean the transaction was accepted. This limits the usefulness of the messages, while there are better solutions to check that a transaction is valid and includes enough fees. Meanwhile, the messages were making the peer-to-peer protocol more complex, and were taking up bandwidth.

BIP61 Reject Messages had therefore already been disabled by default in Bitcoin Core 0.18.0. Bitcoin 0.20.0 has now removed the feature completely.

Removal of the BIP70 Payment Protocol (and OpenSSL)

The Payment Protocol (BIP 70) was designed several years ago to improve Bitcoin’s payment experience. A user and a merchant could communicate additional details about a payment, such as a human-readable destination address (the name of the merchant) and a refund address in case something went wrong with the purchase.

While Bitcoin Core integrated the Payment Protocol, the standard was never widely adopted. Instead, most wallets still use the more basic URI scheme (BIP21): The clickable link or scannable QR-code format that, for example, communicates the payment address and amount.

Perhaps more importantly than the lack of adoption, the BIP70 Payment Protocol suffered a number of security and privacy vulnerabilities over the years. Most notably, its dependency on the OpenSSL software library for cryptographic functions required a series of short notice emergency upgrades. Some Bitcoin wallets have, for these reasons, rejected implementing BIP70 altogether.

Bitcoin Core 0.19.0 removed the Payment Protocol from the GUI, but users could still compile their node with a special configuration to make use of the feature. Bitcoin Core 0.20.0 has now completely removed the Payment Protocol.

With BIP70 gone (and some other software tweaks to remove the dependency), Bitcoin Core has also been able to completely remove OpenSSL from its codecase.

Dumptxoutset As a First Step Toward Assumeutxo for Fast Bootstrapping

A new remote procedure call (RPC) lets Bitcoin Core 0.20.0 generate a snapshot of the UTXO set, which reflects the state of Bitcoin ownership as recorded on the blockchain at a specific point in time (block height). This snapshot can be shared.

Future Bitcoin Core releases will share such a snapshot when peers first join the network. This allows the new nodes to immediately start participating on the network from the point in time when the snapshot was made, while the entire history of the blockchain is checked in the background. (Like Assumevalid, a similar shortcut, Assumeutxo does come with trust tradeoffs before the entire blockchain is checked, and should until then be used with these tradeoffs in mind.)

For a more extensive list of upgrades, also see the Bitcoin Core 0.20.0 release notes.

Thanks to Sjors Provoost for information and feedback.

The post Bitcoin Core 0.20.0 Released: What’s New appeared first on Bitcoin Magazine.

Source: https://bitcoinmagazine.com/articles/bitcoin-core-0-20-0-released-whats-new?utm_source=rss&utm_medium=rss&utm_campaign=bitcoin-core-0-20-0-released-whats-new

Blockchain

GIBX Swap: Sky is the Limit for the Best Decentralized Exchange Platform

The era of decentralized exchanges has come with the maturity and application of digital technologies.

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The value of GIBX Swap, which focuses on mainstream cryptocurrencies, is predicted to continue growing, shortly after its recent launch, and its price has the potential to reach record heights.

The first and leading decentralized exchange platform in the world has been launched on Sep.14,2021. Two days later, it is announced that GIBX Swap has started trading.

Meanwhile, due to its reputation, it has officially been listed on CoinMarketCap, the world’s most-referenced price-tracking website for cryptoassets in the rapidly growing cryptocurrency space. 

Decentralized tech and business

DeFi, shortened for Decentralized Finance, has been catching on since 2020. GIBX Swap holds the view that being decentralized is prerequisite to DEX. Traditional exchanges tend to be centralized.

On the one hand, it serves as information intermediaries, solving the issue of asymmetry of information to some extent; on the other hand, it create a new information asymmetry in favor of itself by the monopoly and manipulation of information, sometimes at the cost of the legitimate interests of clients.

No matter how the stock market performs, centralized exchanges can rely on charges and fees to guarantee their revenues.

As far as GIBX SWAP is concerned, the era of decentralized exchanges has come with the maturity and application of digital technologies. As a new type of exchange, the decentralized exchange makes the fullest use of the decentralization of blockchain, building peer-to-peer trust and transactions, with no intermediary.

The transaction links are all on the chain and performed directly by the open-source smart contract. As long as the user has and keeps the private key, he/she doesn’t have to worry about property security.

GIBX Swap features decentralized technologies with its brand-new block chain trading underlying platform, new generation of trading contract and cross-chain decentralized exchange, and complete business model with asset safety, market liquidity, trading fairness, ecological openness and transaction experience.

It aims to become the benchmark for DEX platforms and the leading DEX platform for token swaps.

GIBX Swap is an automated market maker (AMM) that allows a user to exchange two tokens. The liquidity provided to the exchange comes from Liquidity Providers (“LPs”) who stake their tokens in Liquidity Pools. In exchange, a user gets LP tokens that can also be staked to earn X tokens in the “Pool”.

Blockchain security protection from inside and outside

GIBX Swap puts emphasis on blockchain security protection. For one thing, it strengthens its own security from inside; for another thing, it has its smart contract technology code audited. Certik, the world’s leading block chain security audit institution has provided an audit for the project.

Established by the research team from Yale University and Columbia University with a decade of research, Certik has been providing code security audit services for blockchain applications and smart contracts, and the highest level of code security solution.

It is announced that GIBX Swap has passed the Certik security audit, which is carried out in a comprehensive review from Static Analysis, On-chain Monitoring, Social Sentiment, Governance & Autonomy, Market Volatility and Safety Assessment in search of potential safety hazards and possible production vulnerabilities.

It is confirmed once again after the audit by Certik that the technical code delivered by GIBX Swap is at a very high level of security, and GIBX Swap has the initiative to perform security tests.

Price predicted to reach new high 

GIBX Swap is highly committed to the supplier of true value, fairness, and innovation to decentralized finance through high-quality products and services.

It aims to become a benchmark for DEX platforms and take up the mantle of becoming the leading DEX platform on the market for token swaps. GIBX Swap is fast, secure no which anyone can swap and earn tokens.

A growing number of people has been paid attention to GIBX Swap ever since its launch. There have been over 46,000 followers in twitter, and more than 90,000 members in its TG.

GIBX Swap has shown strong potential lately and this could be a good chance to invest. Its value is expected to continue to expand, as shortage tends to encourage price rise.

In terms of price, GIBX Swap has an outstanding potential to reach new heights. X is forecast to increase in value. GIBX Swap can hit the highest price of $23.62 till 2030.

GIBX Swap is affiliated to GIBX, an international comprehensive Internet brokerage firm created by GIB Global Investment Bank & Capital Trust and a digital asset trading platform covering forex functions. GIBX has teamed up with world-renowned cryptocurrency platforms and top liquidity providers, including but not limited to: CoinMarketCap, CoinGecko, JPMorgan Chase, Goldman Sachs etc. in order to provide users a more transparent and convenient trading experience. As a financial trading platform regulated by international authorities such as FCA, ASIC, NFA, GIBX strictly follows all rules and regulations and uses reliable risk management solutions to ensure the safety of users’ capital.

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Source: https://www.financemagnates.com/thought-leadership/gibx-swap-sky-is-the-limit-for-the-best-decentralized-exchange-platform/

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Blockchain

Solana, Polkadot, Algorand: What is the Bitcoin effect on these altcoins

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With the market trading in red today pretty much all coins including Bitcoin and Ethereum are falling. However, there are some coins that made excellent gains in the last 2 months which are now facing huge price falls as well.

Which alts though?

Solana, Polkadot, and Algorand were three altcoins that successfully rallied between July and August. Polkadot rose from $12.34 all the way to $34.45 registering a 214.33% growth. Similar gains were observed for Algorand as the coin breached $2 and marked a 230.26% rise. 

The most gains were seen by Solana holders though mainly because the altcoin shot up 713.94%. An increase this high was the result of the NFT hype which took it up from $26.68 to $191.07

Solana’s 713% rise | Source: TradingView – AMBCrypto

In fact, Solana and Algorand even registered new all-time highs during this time period. But each of these coins is now observing significant price falls as well. 

In the last 24 hours ALGO fell by 15.26%, DOT came down by 14.37% and SOL lost 16.8% of its price as of press time.

A huge reason behind this fall is also their exhausted momentum since even after the September 7 fall, DOT and ALGO witnessed another price rise before they finally hit a slowdown.

Algorand’s 15.26% drop | Source: TradingView – AMBCrypto

Owing to this investors are possibly getting rid of their holdings in both spot and derivatives markets. Sell volumes at the time of this report have increased and liquidations rose to millions for all 3 altcoins. Since SOL gained the most, it lost the most as well and its liquidations touched $25 million.

Solana liquidations at $25 million | Source: Coinalyze – AMBCrypto

Can Bitcoin save them?

Well since Bitcoin’s price movement commands the market’s movement it is obvious that BTC needs to reduce losses first. But more importantly, these assets’ correlation to Bitcoin will determine how much they will be affected by BTC. Right now Algorand is at the lowest at 0.57, followed by Solana at 0.7, and at the highest is Polkadot (0.88)

However, surprisingly, investors are most positive about Algorand of all three hoping for a recovery soon.

Investor sentiment | Source: Santiment – AMBCrypto

Once Bitcoin and Ethereum change their movement, other coins would follow suit. And that’s when some recovery can be expected.

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Source: https://ambcrypto.com/solana-poladot-algorand-what-is-the-bitcoin-effect-on-these-altcoins

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Blockchain

Kraken Daily Market Report for September 19 2021

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Overview


  • Total spot trading volume at $598.4 million, the 30-day average is $1.36 billion.
  • Total futures notional at $223.4 million.
  • The most traded coins were, respectively, Bitcoin (-2.2%), Ethereum (-3.1%), Tether (0%), Solana (-9.9%), and Cosmos (+8.8%).
  • Cosmos continues its hot streak, up 8.8%. Also strong returns from OMG (+10%).

September 19, 2021 
 $598.4M traded across all markets today
 Crypto, EUR, USD, JPY, CAD, GBP, CHF, AUD 
BTC 
$47237. 
↓2.2% 
$159.9M
ETH 
$3328.3 
↓3.1% 
$112.5M
USDT 
$1.0001 
↓0.01% 
$66.5M
SOL 
$152.62 
↓9.9% 
$39.4M
ATOM 
$44.205 
↑8.8% 
$34.8M
ADA 
$2.2816 
↓3.7% 
$33.9M
DOT 
$33.828 
↓2.9% 
$28.0M
USDC 
$1.0 
↓0.01% 
$19.8M
ALGO 
$1.975 
↓4.8% 
$16.0M
XTZ 
$6.5085 
↑1.1% 
$16.0M
XRP 
$1.0480 
↓2.5% 
$11.6M
LINK 
$27.364 
↓3.3% 
$8.56M
DOGE 
$0.2329 
↓3.3% 
$7.51M
LTC 
$181.89 
↑0.24% 
$7.26M
OMG 
$9.6562 
↑10% 
$6.8M
KSM 
$400.45 
↓4.2% 
$6.65M
EOS 
$4.912 
↓9.9% 
$4.86M
CRV 
$3.0345 
↑5.8% 
$4.84M
BCH 
$610.63 
↓3.2% 
$4.79M
DYDX 
$14.288 
↓12% 
$4.55M
MATIC 
$1.3112 
↓4.1% 
$4.14M
XLM 
$0.3134 
↓2.7% 
$3.04M
MOVR 
$387.12 
↓2.1% 
$2.95M
MINA 
$5.38 
↑1.7% 
$2.88M
ZEC 
$133.55 
↓3.8% 
$2.77M
TRX 
$0.1037 
↓2.0% 
$2.4M
AAVE 
$339.02 
↓4.5% 
$2.29M
SC 
$0.0180 
↓5.1% 
$2.02M
XMR 
$260.10 
↓4.2% 
$1.99M
FLOW 
$20.114 
↓2.9% 
$1.93M
DAI 
$1.0002 
↑0.01% 
$1.85M
ANT 
$5.9664 
↓3.2% 
$1.76M
MLN 
$123.19 
↑2.4% 
$1.72M
SNX 
$12.82 
↑1.7% 
$1.47M
DASH 
$192.81 
↓3.6% 
$1.32M
NANO 
$5.5184 
↓0.9% 
$1.31M
OXT 
$0.3665 
↓2.7% 
$1.29M
ETC 
$55.316 
↓2.8% 
$1.26M
SRM 
$9.8570 
↓8.9% 
$1.23M
KAVA 
$6.0120 
↓4.3% 
$1.09M
CQT 
$1.193 
↓2.6% 
$907K
ICX 
$1.7976 
↓6.7% 
$837K
SDN 
$5.84 
↓2.7% 
$819K
KEEP 
$0.4473 
↓6.4% 
$809K
UNI 
$23.906 
↓2.3% 
$807K
WAVES 
$27.5 
↓5.1% 
$798K
KAR 
$9.941 
↓11% 
$790K
FIL 
$83.437 
↓1.0% 
$725K
YFI 
$32933. 
↓2.6% 
$649K
COMP 
$392.7 
↓2.1% 
$599K
QTUM 
$12.145 
↓3.3% 
$577K
OCEAN 
$0.7578 
↓5.7% 
$577K
SUSHI 
$12.017 
↓5.3% 
$513K
REN 
$0.8905 
↓5.9% 
$501K
GRT 
$0.8017 
↓3.4% 
$429K
RARI 
$19.69 
↓7.9% 
$406K
KNC 
$1.7345 
↓3.5% 
$339K
STORJ 
$1.3421 
↓3.9% 
$318K
PAXG 
$1763.7 
↓0.21% 
$305K
BAT 
$0.7403 
↓1.3% 
$269K
CTSI 
$0.6513 
↓3.6% 
$268K
AXS 
$63.35 
↓2.2% 
$245K
ENJ 
$1.5619 
↓4.9% 
$220K
LSK 
$3.6100 
↓0.6% 
$216K
ZRX 
$1.047 
↓5.4% 
$207K
EWT 
$10.199 
↓4.7% 
$197K
BAL 
$24.71 
↓3.9% 
$191K
MIR 
$3.6362 
↓3.0% 
$177K
CHZ 
$0.3165 
↓3.6% 
$156K
1INCH 
$2.9619 
↓4.3% 
$142K
GNO 
$265.44 
↓5.0% 
$141K
PERP 
$14.055 
↓5.7% 
$139K
MANA 
$0.7986 
↓2.8% 
$136K
BADGER 
$20.576 
↓8.8% 
$136K
OGN 
$1.0027 
↓5.0% 
$125K
MKR 
$2730.0 
↓2.9% 
$115K
INJ 
$10.950 
↑2.0% 
$99.1K
REP 
$25.857 
↓1.8% 
$95.5K
LPT 
$18.11 
↓4.2% 
$89.2K
ANKR 
$0.0947 
↓0.3% 
$76.3K
LRC 
$0.4531 
↓1.5% 
$71.4K
GHST 
$1.6867 
↓1.2% 
$56.2K
BAND 
$8.852 
↓4.2% 
$48.2K
SAND 
$0.7381 
↓4.7% 
$43.9K
TBTC 
$48240. 
↓3.4% 
$32.5K
REPV2 
$25.234 
↓3.7% 
$27.3K
BNT 
$3.923 
↓1.3% 
$15.5K
WBTC 
$47699. 
↓0.4% 
$12.3K



#####################. Trading Volume by Asset. ##########################################

Trading Volume by Asset


The figures below break down the trading volume of the largest, mid-size, and smallest assets. Cryptos are in purple, fiats are in blue. For each asset, the chart contains the daily trading volume in USD, and the percentage of the total trading volume. The percentages for fiats and cryptos are treated separately, so that they both add up to 100%.

Figure 1: Largest trading assets: trading volume (measured in USD) and its percentage of the total trading volume (September 20 2021)



Figure 2: Mid-size trading assets: (measured in USD) (September 20 2021)



###########. Daily Returns. #################################################

Daily Returns %


Figure 3: Returns over USD and XBT. Relative volume and return size is indicated by the size of the font. (September 20 2021)



###########. Disclaimer #################################################

The values generated in this report are from public market data distributed from Kraken WebSockets api. The total volumes and returns are calculated over the reporting day using UTC time.

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Source: https://blog.kraken.com/post/11070/kraken-daily-market-report-for-september-19-2021/

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