Bitcoin
Bitcoin official website recommends the latest version ( Taproot consensus ) of the Bitcoin Core client by default.
The official website of Bitcoin has been updated to recommend the latest version of Bitcoin Core client version 0.21.0 by default, and release 0.21.0 version change log. The document shows that although this version has implemented the Taproot consensus rule update, it has not yet been activated on the main net. If you want to test the experimental features of Taproot, you can do it through the Signet test net. The feature has been activated in Signet.
---
BitMEX Research: The previous 0.0006 BTC double spend may be an instance of RBF
The BitMEX Research Twitter update stated that after careful inspection, the previous 0.0006 BTC double spend is likely to be an instance of RBF, in which the lower fee transaction won. It is reported that the RBF scheme is a fee substitution method (RBF) tool proposed by the Canadian Bitcoin core developer Peter Todd: if two transactions are initiated from the same address, the transaction with the higher commission will win. The RBF fee substitution method was originally adopted for It provides Bitcoin users with a fast transaction option, but one of its bad effects is that it makes zero-confirmation transactions easy to double spend.
---
Bitcoin network difficulty adjusted to a record high of 20.82T
According to OKLink data from Oukeyunchain, the Bitcoin network at 19:58 on the 22nd, the block height 667296 ushered in a difficulty adjustment, the difficulty of the entire network was adjusted to 20.82T, an increase of 1.05%, and the network difficulty hit a record high again. The current number of unconfirmed Bitcoin transactions is 36,862, and the average block time in the past week is 10.37 minutes.
---
BTC core developers launch an improved version of the Bitcoin address format Bech32
On January 18th, Bitcoin Core developer Pieter Wuille tweeted to announce the launch of an improved version of the Bitcoin address format Bech32, Bech32m. According to its published documents, the new version modifies the relevant content of the BIP173 protocol to use Bech32m for the native segregated witness output of version 1 and later. At the same time, Bech32 is still used for version 0 separate witness output. BIP173 mainly defines Bech32's general check sum base 32 encoding format. Bech32m fixes the insertion bug attached to BIP173. Note: Bech32 is a Bitcoin address format, created specifically for use with SegWit technology.
---
Digital asset company Valkyrie submits Bitcoin ETF application to U.S. SEC
According to documents submitted to the US Securities and Exchange Commission on January 22, the digital asset company Valkyrie (Valkyrie Digital Assets LLC) is applying for a Bitcoin exchange-traded fund (ETF). The ETF plans to be listed on the New York Stock Exchange Arca.
---
Bitcoin Core chief maintainer decides to retreat behind the scenes
According to official news, Wladimir van der Laan, the main maintainer of Bitcoin Core client Bitcoin Core, decided to play "more" behind-the-scenes roles in order to further decentralize power. van der Laan pointed out that Bitcoin Core is a key component supporting the Bitcoin network. Although its work is essentially a "guardian" to ensure the smooth progress of the project code, some people in the community believe that he is a certain type of leader. I don't want to stop contributing to Bitcoin or Bitcoin Core projects, but I want to get rid of the key role. This will contribute to the decentralization of Bitcoin and claim that this digital currency should not have any leaders.
---
Bitcoin.org holder Cobra: will never take down the Bitcoin white paper
Bitcoin.org holder Cobra tweeted yesterday: Satoshi Nakamoto uploaded the Bitcoin white paper to Bitcoin.org, and the white paper was used by thousands of academic papers. Our removal will be a betrayal of his legacy, which will never happen. Previously, after Cobra published an article against CSW allegations, BitMEX, Huobi have announced that they will keep the Bitcoin white paper.
---
Ethereum
Statistics: The number of wallet addresses holding at least 10,000 ETH hit a record high
Santiment data shows that the number of wallet addresses holding at least 10,000 ETH has increased by 14 from 1,211 to 1,225, a record high.
ETH's mining difficulty and hash rate hit record highs recently
In the past few days, ETH mining difficulty and hash rate have both hit record highs. Glassnode data shows that the difficulty of ETH mining reaches 4410 T. According to Etherscan data, the ETH hash rate has recently reached 338,213.5899 GH/s
---
Grayscale announces that it will launch an Ethereum fund in mid-February
According to an email notification issued by the well-known crypto investment bank Grayscale, the institution will officially launch the Galaxy Ethereum Fund in mid-February. It is reported that the fund aims to provide investors with outsourced trading, operation, finance and custody/digital asset private key protection services, reduce the complexity of digital asset investment, and provide customers with institutional-quality ETH investment exposure. At the same time, the fund will be priced based on Bloomberg's Grayscale Ethereum Index, managed by Gemini, and the management fee is 1%-1.25%.
---
Ethereum developers: will launch a calculator for the impact of EIP-1559 on miners' fees
Ethereum developer Tim Beiko tweeted today that this week’s discussion with miners also brought another good thing: we will launch a calculator with an estimate of the impact of EIP-1559 on miners’ fees.
---
ETH 2.0 starts stress test
At present, the beacon chain is only a test network, because it does not affect the data stored in the eth1 chain. Any vulnerability that may affect the validator balance can be reversed without serious consequences. However, it would be catastrophic if there are loopholes in the process of migrating the eth1 state to the POS beacon chain. Among them, the POW eth1 chain and the POS eth2 chain will run at the same time, processing the same transaction, and expect that they will eventually complete the same state (if possible not at the same time). Assuming that the ETH1 chain is secure and error-free, any exploits in the ETH2 chain will cause transactions to create different final states in the ETH2 chain compared to the ETH1 chain. Establish a test period that may be one month. Compared with the ETH1 data generated by the same transaction, anyone who can find a loophole that allows the final data of the ETH2 chain to be changed will receive a reward of 1,000 ETH. Every time an exploit is discovered, it will be patched and ETH The 1 chain resynchronizes the ETH 2 chain, and then resets the test period to 1 month, and the reward amount is multiplied by 1.5. This will strongly encourage people to stress test the ETH2 chain before it goes live.
---
Loopring launches the second phase of L2 liquidity mining, will issue 1.2 million LRC
Loopring will start the second phase of the mining activity at 8 am Beijing time on January 25, and the activity will last for 14 days. For the three official Loopring fund pools (ETH⇄DAI, ETH⇄USDC, and LRC⇄ETH), liquidity mining will each issue 400,000 LRC rewards.
---
The Yearn finance team initiated a proposal to mint 6,666 YFI tokens
On January 21, an 11-person team composed of the main contributors of Yearn finance and community members submitted a proposal today to increase the supply of YFI by 6,666. At current prices, its value is approximately $225 million. About 1/3 of the YFI minted will be allocated to key contributors, and the remaining 2/3 will be allocated to the Ministry of Finance. These funds will be used for various purposes through existing governance methods.
Yearn.finance: v2 yVault will charge 20% revenue fee and 2% management fee
Yearn.finance tweeted early in the morning, “Our v2 yVault has a new fee structure. Withdrawal fees have been cancelled. Instead, we implemented a 20% revenue fee and 2% management fee (AUM).”
---
Cover Protocol initiated a proposal to transfer cover private key management to the team multi-signature
On January 24, Cover Protocol officially announced that the community has initiated a new proposal to set the cover casting rights and private keys to be multi-signed by the Cover Protocol development team. Officials said that there is currently a set of COVER tokens to be claimed. These unclaimed COVERs are best used for future incentives, rather than just leaving them unclaimed. Therefore, for future incentives, the private key settings need to be changed temporarily.
COVER v1.1 and v2 will be released early from Q1 to Q2
On January 24, according to the content of the relevant proposal page officially announced by the Cover Protocol, the COVER v1.1 version responsible by Andre Cronje and the Cover v2 version of the Cover team (including the specific insurance coverage in the agreement, bundling agreement, expanding liquidity, dynamic fees Other features), as well as the COVER integration with Yearn v2, will be released from the first quarter to the early second quarter of 2021.
---
Uniswap founder: the team is hiring full-time developers to optimize front-end routing
Uniswap founder Hayden Adams tweeted that people sometimes complain that Uniswap's front-end routing should be better. Optimal routing is an interesting problem, its complexity is endless, and now at least one full-time developer is required. If someone wants to accept the job, they can apply. According to the news released by Uniswap Protocol on January 6, the Uniswap development team is recruiting senior front-end engineers, smart contract engineers, full-stack engineers and software engineer interns. According to previous reports, UNI broke through 10 USDT and hit a record high, ranking 20th in market value.
---
UNI breaks through $10, hits a record high, and its market value ranks among the top 20
According to Huobi Global data, UNI pulled up in the short-term, reaching a record high of US$10.267. At the same time, the market value of UNI has been among the top 20, currently ranking 20th, with a market value of approximately US$2.182 billion.
---
Polka
Data: Polkadot will unfreeze more than 55 million DOT in mortgage mining in the next month
According to browser data, Polkadot will usher in a larger amount of unlocks in the next month. It can be clearly seen from the daily unlock pledge plan (DOT) graph that Polkadot will usher in a small peak of unlocking on January 27, February 4, February 5, and February 13 and February 17. The unlocked numbers are all around 4 million or more. Among them, the unlocked number on February 5 exceeded 10 million, and the specific number is 10,308,945.64. In addition, statistics show that from January 24 to February 20, over 55 million DOT were unlocked by mortgage mining on the entire network, with a specific amount of 55,562,626.19.
Polkadot has about 297 validators. Rococo has 5 parachains
On January 24, PolkaWorld, the Chinese community of Polkadot, released the Polka Weekly. The main contents include:-Polkadot has about 297 validators. The function of validators to remove nominators has been added, and the current minimum pledge amount for staking rewards is about 83.2 DOT. Polkadot is currently the lowest in era The number of DOT pledged by validators is 1,636,877 DOT, and the highest pledge is 3,992,758 DOT. The average stake of validators is 2,051,101 DOT. Polka Council members are voting on Fearless Wallet's Milestone3. Polka Council is currently voting on bill No. 54 to implement the distribution of treasury funds in accordance with the Polkascan social contract. Rococo There are now 5 parachains, Tick, Trick and Track, as well as Plasm and Mandala. There are 26 proposals waiting to be added.
---
TRON
The number of USDT transactions on the Tron blockchain has surpassed Ethereum for three consecutive weeks
According to news on January 21, due to the still high transaction fees on Ethereum, the number of USDT transactions on the Tron blockchain has surpassed Ethereum for three consecutive weeks. Data shows that in the past four weeks, the number of USDT transactions on Ethereum has stabilized at around 1.5 million per week. But on Tron, the number of weekly transactions has grown from about 900,000 in mid-December to nearly 2 million in the second week of January.
---
Grin
Grin has completed the 4th hard fork upgrade
F2Pool posted on Weibo that Grin has completed the fourth hard fork upgrade. F2Pool has mined the first block of the hard fork 1,048,320. After the upgrade, the Grin-29 algorithm corresponds to the mining rewards and the network only supports Grin-32 algorithm.