Project Weekly is a weekly block chain industry summary column, covering key news of the week, market and contract data, mining information, project dynamics, technological progress and other industry trends. This article is a project weekly, taking you at a glance the progress of mainstream projects and star projects this week.


Miami will host the Bitcoin 2021 conference

According to Cryptopotato, after a long period of interruption of the cryptocurrency conference due to the new crown pneumonia epidemic, the world’s largest Bitcoin event, the Bitcoin 2021 conference, will be held in Miami in June. By then, there will be a large number of participants and well-known keynote speakers attending the conference. Former Congressman Ron Paul, Miami Mayor Francis Suarez, Senator Cynthia Lummis, MicroStrategy CEO Michael Saylor and Twitter CEO Jack Dorsey will give headline keynote speeches. Other featured speakers include Mayweather, the Winklevoss brothers, Max Keiser, Warren Davidson, etc. It is reported that the event was originally scheduled to be held in Los Angeles from April 30 to May 1. However, due to the impact of the new crown epidemic, the venue and date have changed. It will be held at the Wynwood’s Mana Convention Center in Miami, Florida (USA) from June 3 to 5. As of now, the organizers expect at least 12,000 attendees, which will make the Bitcoin 2021 conference the largest Bitcoin event ever.

U.S. convenience store giant Sheetz will accept Bitcoin and other cryptocurrency payments

Golden Finance reported that the American convenience store giant Sheetz announced its imminent acceptance of digital currency after cooperating with the encrypted payment startup Flexa. It will support Bitcoin, Dogecoin, Ethereum, Litecoin and other cryptocurrencies in selected cafe stores this summer. By the end of this year, it is also possible to allow the use of cryptocurrency to pay for gasoline at its gas stations. It is reported that Sheetz was founded in 1952 and currently has 634 stores and annual revenue of 6.2 billion US dollars.

U.S. Indy 500 Grand Prix ushered in the first race car sponsored by Bitcoin

According to Daily stock market news, on Sunday, Bitcoin will be officially unveiled at the most famous car race in the United States-the Indianapolis 500 Mile Grand Prix. It is reported that the No. 21 Bitcoin Chevrolet of Ed Carpenter Racing (ECR) of the IndyCar series team will compete with 32 other cars. This orange-black car with the Bitcoin logo is the first racing car sponsored by Bitcoin supporters. The number 21 is intended to represent 21 million bitcoins. In addition, this month, ECR will also collaborate with the Strike payment application to allow payments and donations of cryptocurrency.

Vancouver rental platform accepts first bitcoin to pay rent

According to Narcity, the start-up rental platform in Vancouver, Canada announced that it will accept users to use Bitcoin to pay rent. It is reported that renters can use Coinbase or any other cryptocurrency wallet to pay. And both tenants and landlords need to be on the platform to take advantage of cryptocurrency payment options. The tenant can pay in cryptocurrency, and the landlord will receive payment in Canadian dollars.


The Uniswap community vote is over and it is confirmed that Uniswap v3 will be deployed in Arbitrum

According to official sources, the Uniswap community ended voting and passed the proposal to deploy Uniswap v3 in Arbitrum with a support rate of nearly 100%. According to the previous Uniswap founder Hayden Adams’ promise, the Uniswap development team will deploy Uniswap v3 in Arbitrum.

Uniswap founder: Uniswap will restart UNI liquidity mining “soon”

According to Uniswap founder Hayden Adams, Uniswap is likely to restart its native token UNI liquidity mining in the short term. Hayden Adams said at the 2021 Consensus Conference: “I think this will come soon” because restarting liquidity mining should help the community. On May 27th, Hayden Adams tweeted that the community vote has received overwhelming support to support the deployment of Uniswap v3 to the Ethereum expansion solution Arbitrum. Currently, Uniswap has begun work on interface support and deployment plans. In addition, he also said that Uniswap will continue to communicate and cooperate with optimismPBC, and will deploy it in the near future.

Ethereum developer Tim Beiko is testing EIP-1559 on the Ethereum testnet Ropsten

Ethereum developer Tim Beiko said that he hopes that the giant whale of the Ethereum Ropsten testnet will send him 1,000 to 10,000 ETH for testing EIP-1559. It is reported that EIP-1559 attempts to reduce transaction costs by introducing a fixed fee and a destruction mechanism, which was first proposed by V God in 2018. The proposal is a mechanism that optimizes the Ethereum transaction mechanism. It aims to make transaction fees on the Ethereum network more predictable and solve the current “pay-as-you-go” charging model. In addition, the charging structure of EIP 1559 will automatically adapt to network requirements.

Layer 2 solution Arbitrum launches mainnet beta version of Arbitrum One

Offchain Labs announced that it has launched the Arbitrum mainnet test version of Arbitrum One for developers, and has deployed the Arbitrum contract on the Ethereum mainnet, and has begun to introduce infrastructure and projects. Arbitrum One is initially open to all developers who request access. Once a sufficient number of real-time projects are deployed on the network and ready to go online, it will be open to end users. There are currently more than 250 teams requesting to launch Arbitrum One. Earlier news, Layer 2 solution Arbitrum tweeted that its mainnet will be open to developers on May 28, and the Arbitrum Sequencer testnet will be opened on May 14.

Ethereum Foundation Developer: The first upgrade of the beacon chain, Altair, has made progress

The core developer of the Ethereum Foundation, Danny Ryan, published an article on the official Ethereum blog announcing that the first upgrade of the beacon chain, Altair, has made steady progress. Altair is a relatively small beacon chain update planned for the middle of the year. Earlier, the Ethereum developer conference call mentioned that the client team is progressing quite smoothly in implementing the Altair specifications. Danny Ryan revealed that the first planned upgrade of the beacon chain, Altair, has made steady progress. Last week, the beacon chain spec v1.1.0-alpha.6 was released. Although Protostellar Evolution is an Alpha version, it should be due to security or practical engineering considerations. No major adjustments will be made. Danny Ryan also said that the Ethereum client development team is now focusing on the London fork and the Altair fork this summer, and then shifts its focus to the merger of Eth1 and Eth2.

Ethereum’s second-tier solution, zkSync, launches the zkSync 1.x testnet, which supports NFT and exchange functions

Ethereum’s second-tier solution, zkSync, announced the launch of the zkSync 1.x testnet. Users can try the NFT and swap (Swap) functions on the Rinkeby Beta and Ropsten testnets, including the exchange of ERC-20 tokens, minting, transfer and exchange of NFTs, and withdrawal of NFTs to L1. In addition, the zkSync 1.x mainnet upgrade will be launched in May, including exchange, NFT, a new event system and a list of tokens that do not require permission, and will be launched after a 2-week upgrade timelock (timelock).

Polygon has integrated Google Cloud Platform BigQuery to analyze on-chain data

The blockchain data of Polygon, the Ethereum scaling solution, has reached Google’s cloud platform BigQuery. According to an email statement on Friday, Polygon’s integration with Google BigQuery enables developers to analyze data on the Polygon chain in a simpler way. Allegedly, the potential benefits of the integration include monitoring Gas fees and smart contracts, as well as identifying the most popular tokens or applications on the network. Polygon said that being able to obtain information from more than 6 million daily transactions on its blockchain will greatly help the growth and construction of Polygon and the Ethereum ecosystem.

Ethereum developers will hold EIP-1559 Gas API call meeting at 22:00 on June 4th

According to official news, Ethereum developers will hold an EIP-1559 Gas API call meeting at 22:00 on June 4, which will last for 60 minutes. The agenda includes introductions by Gas API providers; JSON RPC terminals for Gas prices; and open discussions. Ethereum developer Tim Beiko commented that one thing to discuss is how to update eth_gasPrice. According to the EIP-1559 wallet call, people want eth_gasPrice to be backward compatible, so the initial idea was to add a new optional parameter to indicate the caller Hope to receive estimates based on EIP-1599. Another option is that we can add new terminals eth_maxPriorityFeePerGas and eth_maxFeePerGas, and the client can call them to obtain new information.

Balancer completes $24.25 million in financing

Golden Finance reported that Balancer completed a $24.25 million financing led by Blockchain Capital, Fintech Collective, LongHash Ventures, Fenbushi Capital, Continent Capital, and Kain Warwick, the founder of the DeFi protocol Synthetix. These funds will be used to strengthen Balancer’s position as a core infrastructure provider in the DeFi market.

1inch wallet supports Mercuryo fiat-to-crypto gateway solution

Golden Finance reported that, according to official sources, the on-chain transaction aggregator 1inch Network has reached a cooperation with the cross-border payment network Mercuryo. 1inch DeFi wallet has supported Mercuryo’s fiat-to-crypto gateway solution. It is reported that Mercuryo allows users to purchase ETH, DAI and USDT using bank cards, Apple Pay and Google Pay one-click payment methods in more than 180 countries or regions.

Polygon releases SDK development kit for building Ethereum compatible chain

Polygon, a layer 2 Ethereum expansion solution, released its SDK software development kit on Wednesday, allowing developers to deploy their own Ethereum-connected blockchain. Polygon SDK contains several plug-and-play modules, customized solutions for consensus and synchronization parameters. In addition to consensus and synchronization, Polygon SDK also contains other modules, such as TxPool, JSON RPC and gRPC. Polygon revealed that its SDK is designed to imitate the “Polkadot on Ethereum” method, which can see the emergence of Ethereum’s multi-chain network. It is reported that the Polygon SDK will undergo two iterations. The first version allows developers to create independent chains and is fully interoperable with the Ethereum network. In the second Polygon SDK iteration, the development team will be able to create an actual second layer protocol directly connected to the Ethereum mainnet.

Gitcoin launches governance token GCT

Golden Finance reported that Gitcoin announced the launch of the governance token GCT. According to official sources, GTC has no economic value and is controlled by GitcoinDAO. GTC is a governance token launched for reliable neutral developers and public goods funds, and a means to gradually decentralize the Gitcoin platform through GitcoinDAO. GitcoinDAO will oversee the community funding of GTC tokens and provide a governance framework for representatives (called Gitcoin Stewards) to participate in key ecosystem decisions such as fund allocation, matching pools, and grant collusion. A total of 100 million GTCs, 15% of which are being retrospectively allocated to previous Gitcoin users, GitcoinDAO accounted for 50%, and existing stakeholders accounted for 35%.

A hot fix has been released for synchronization problems with some Polygon nodes

According to official news, Anurag Arjun, the co-founder and chief product officer of Polygon, the expansion solution for Ethereum, released an update stating that on May 26, a small number of verification nodes on the Polygon PoS network were inconsistent with full nodes, and the chain itself remained flexible and fully operational. Found status or other inconsistencies. At height 5237861, the Heimdall block committer stopped before collecting prevotes and went online again to collect prevotes from the last round of voting, but other validating nodes have spread their prevotes, resulting in “wrong signature prevotes” by other validating nodes problem. However, the timeout waiting for submission fixed the problem. The impact of these operations can be seen on the Bor nodes of the affected nodes, and the block production and synchronization on these nodes are lagging behind. The official has developed a temporary hot fix procedure to enable these nodes to synchronize with the network. A more robust fix will be released shortly to alleviate this situation. The chain itself is still running, and deposits from Ethereum work as expected, albeit with a slight delay in some cases.

The total issuance of stablecoins on Ethereum exceeded US$65 billion, a record high

According to the latest data, the total issuance of stablecoins on the Ethereum blockchain exceeded US$65 billion, a record high. At the time of writing this article was US$65.12 billion. The stablecoins on Ethereum are legal currencies used in the blockchain network. It is usually set with the price of legal currency, audited by a third party, with real US dollars as a reserve or complex algorithms to protect its price. According to the calculation of the circulation, the current top three Ethereum stablecoins are: 1. USDT: 25,916,047,048 USD, which accounts for 39.80% of circulation; 2. USDC: 21,495,583,096 USD, which accounts for 33.01% of circulation; 3. BUSD: 8,839,902,293 USD, the issuance accounted for 13.58%. The total issuance of stablecoins on the Ethereum blockchain exceeded US$50 billion for the first time on April 20 and exceeded US$60 billion on May 21.

other projects

XMR mainnet launches XMR-BTC atomic swap

According to official news, the XMR-BTC exchange tool has released v0.7.0, which will default to the mainnet when running the exchange. This version is a patch above v0.6.0. When running on the mainnet, both CLI and ASB apply normal default values ​​(for example, node connections, cost estimates, etc.).

Polkadot 0.9.3 version officially released

According to official sources, Polkadot version 0.9.3 has been officially released, which has a high priority for upgrading, and all nodes should be upgraded as soon as possible. This version introduces polkadot code replacement, tested against rustc 1.51.0 and rustc 1.53.0-nightly.

The issue of Polkadot node errors on May 24 has been resolved

According to official sources, on May 24, the Polkadot node failed due to an out of memory (OOM) error in block 5202216. This block contains an on-chain solution for validator elections, which is usually calculated off-chain and is only performed on-chain if an off-chain solution is not submitted. Due to the large number of nominees, the election overflowed the allocated memory in the Wasm environment. In preparation for an update to resolve this issue, the verification program is required to temporarily downgrade its node software to a previous version that includes the native (non-Wasm) version of the runtime. The native version is not restricted by the Wasm memory allocator. After an hour and ten minutes of downtime, the network was restored. Later, in block 5203204, several nodes failed due to “storage root mismatch” errors. After investigation, this is due to the different compiler versions used to build the native runtime and Wasm runtime on the chain. This issue has been resolved and preventive measures have been taken to prevent it from happening again in the future.

Solana ecological NFT social platform Only1 is led by Liquefy Labs

On May 29th, the NFT social platform Only1 based on the Solana blockchain announced that it has received financing led by the investment institution Liquefy incubator Liquefy Labs. At the same time, Liquefy Labs has also become a project consultant for Only1. Alameda Research, GenesisBlockVenture, NGC, PetRockCapital, DuckDAO, etc. participated in the investment. Only1 has not disclosed the specific financing amount for the time being. Only1 combines social media, NFT market, scalable blockchain and the native token LIKE to connect fans and creators. Its functions include creation of NFT casting, LIKE bidding for StarNFT, etc.

Dfinity founder: Dfinity will be integrated with Ethereum

Golden Finance reported that Dfinity founder Dominic Williams announced that Dfinity will begin to integrate Ethereum. Williams detailed the two stages required to integrate the two networks in a blog post. By using “agent” contracts, Internet computer smart contracts will be able to “call” Ethereum smart contracts and return results, and vice versa. But the second phase will take longer, partly because, although Internet computers are designed to expand as more dapps are built on them, their smart contracts currently can only accommodate up to 4GB of storage pages, so Ethereum will Sharding must be done between multiple contracts. Williams said that some Ethereum developers are already doing this work, and “some progress has been made in code.”

The NEAR Protocol native token has been deployed on the Ethereum network as ERC-20

According to official sources, the open network platform NEAR Protocol announced that NEAR tokens have been deployed on the Ethereum network as ERC-20 tokens. Illia Polosukhin, the co-founder of NEAR Protocol, said that the two ecosystems of NEAR and Ethereum can be connected through shared NEAR tokens. In addition, NEAR Protocol has established a preliminary partnership with Ruler Protocol, a DeFi lending platform, to allow depositors of encrypted collateral to obtain stable currency loans. Starting from the June lending cycle, NEAR will be added to Ruler as a supported collateral asset, and borrowers holding LP tokens on the platform will receive double rewards in RULER and NEAR.

Near-chain DeFi protocol Flux completes $10.3 million seed round financing, Coinbase participates in the investment

Recently, Flux completed a $10.3 million seed round of financing based on Near’s DeFi agreement. DistributedGlobal led the investment, and Coinbase Ventures, CoinFund, Uncorrelated Ventures, Figment Capital, IOSG Ventures and others participated in the investment. Flux CEO Peter Mitchell said that Flux is expected to become an oracle with high-value agreements and data. The funds will be used to promote the development of DeFi on Near and will be used to expand the team to introduce talents.

Chia Network received $61 million in venture capital

According to a Bloomberg report, Chia Network Inc., a programmable currency platform created by BitTorrent founder Bram Cohen, has raised $61 million in Series D financing. Venture capitalist giants Andreessen Horowitz (Andreessen Horowitz) and Richmond Global Ventures (Richmond Global Ventures) led this round of financing. Bloomberg News quoted sources as saying that the company’s valuation is about $500 million. David Frazee, managing partner of Richmond Global Ventures, will join Chia’s board of directors. He invests separately in the company.

Founder of Chia: The pool protocol will be launched soon

Chia founder Bram Cohen said on Twitter that we are about to launch a pooling protocol, but will not run it ourselves. Business logic and operation are not our business.

NBA Top Shot users break the million mark

Golden Financial Report, Dapper Labs CEO Roham Gharegozlou said that Dapper Labs’ NFT platform NBA Top Shot has achieved total sales of more than 700 million U.S. dollars in less than a year, and users have exceeded 1 million. The daily login volume is between 150,000 and 250,000.

BurgerSwap, an automatic market maker on the BSC chain, was attacked by lightning loans

On May 28th, PeckShield sent a shield warning that BurgerSwap, an automatic market maker on the BSC chain, was suspected of being attacked by a flash loan. More than 432,874 Burgers were stolen, about 3.3 million U.S. dollars. At present, the attacker has made a profit through 1inch. There are 200,000 Burgers. An EdisonOh investor said that he invested 1 million US dollars and pledged the xBURGER pool. The current liquidity has dropped from 1 million US dollars to only 10,000 US dollars, a loss of 97%.

Cardano launches the first Alonzo testnet Alonzo Blue

Golden Finance reports that, according to official sources, Cardano has launched the first Alonzo testnet, Alonzo Blue. In the next few months, as new testnet functions and features are integrated in the mainnet deployment process, the plan will be expanded to include more users.

Decentralized financial platform Celo announced that the number of addresses exceeded 1 million

According to official news, the decentralized financial platform Celo announced that the number of addresses exceeded 1 million.