ChainCatcher news, according to Bitcoin.com News, Argentine judicial authorities have recently recognized the legal validity of blockchain-based smart contracts for the first time, marking a significant breakthrough in the country's application of blockchain technology. This decision grants smart contracts legal enforceability in Argentina, paving the way for their use in commercial areas such as lease agreements and purchase payments.It is reported that the first legally recognized smart contract is a loan agreement built on the Cardano blockchain. The contract was reached by two Argentine Cardano ambassadors, Mauro Andreoli and Lucas Macchia, involving a four-month loan of 10,000 ADA (approximately $3,430) at an annual interest rate of 10%.Andreoli stated, "We have just signed the first contract on the Cardano network that is fully compliant with the laws of the Argentine Republic and has legal and judicial binding force." He emphasized that this means any breach of contract can be enforced in court to fulfill obligations in ADA. To ensure the legal validity of the smart contract, both parties also signed a supplementary legal document detailing the contract's content, the blockchain used, and the transaction ID of the relevant wallet addresses. This practice may become the standard procedure for the legalization of smart contracts in the future.

ChainCatcher news, Mu Changchun, director of the Digital Currency Research Institute of the People's Bank of China, recently pointed out in an article in the "Current Affairs Report" that the digital renminbi features a dual-layer operational framework, combining both account and value models. In the future, the digital renminbi will deepen its development in areas such as cross-border payments and smart contracts, aiding in the internationalization of the renminbi and the construction of a unified domestic market.The digital renminbi integrates both account and value models and achieves a unified ledger through data capability construction: under the account model, it can be integrated and interconnected with the traditional banking account system; under the value model, it can facilitate value exchange in the form of currency strings, providing smart payments on the blockchain and usable in extreme offline scenarios such as "no network" and "no electricity," optimizing traditional trade finance processes and supporting cost reduction and efficiency enhancement.

ChainCatcher news, dYdX posted on X that the smart contracts on dYdX v3 are secure and have not been attacked. Until further notice, users should not withdraw any funds or interact with the website dydx.exchange.Previous news, the dYdX website has been compromised, please do not visit the site or click any links.

ChainCatcher news, according to a tweet from the RGB++ protocol author, RGB++ will upgrade to RGB++ Layer, which will feature cross-chain functionality without bridges and smart contract capabilities, extending to all UTXO chains.In addition, the RGB++ browser and DeFi infrastructure based on RGB++ Layer will also be launched soon. This will enable complex financial applications to be introduced on the Bitcoin layer, including UTXOSwap, Stable++, ccBTC, LST CKB, and more. At the same time, RGB++ Layer will also expand to other UTXO chains, such as BCH, BSV, and Dogecoin, and support other layer one asset protocols, such as Runes and BRC20.

ChainCatcher message, friend.tech officially stated on social media that FRIEND has always aimed to be a token fully controlled by the community to support Clubs contracts. The migration of supply and liquidity does not align with this intention. Users can still create clubs, chat, purchase keys, and use FRIEND in the friend.tech app on Base.Additionally, friend.tech has closed all protocol fees for BunnySwap, Clubs, and v1 smart contracts.Now, 100% of the fees will belong to traders, liquidity providers, and club presidents within the community.

ChainCatcher message, according to the official tweet from friend.tech, the transferable whitelist for FRIEND is now open to all EOA (Externally Owned Accounts) and smart contract accounts in preparation for the launch of Friendchain. This announcement is for informational purposes only, and users do not need to take any action.

ChainCatcher news, Denis Beau, the First Deputy Governor of the Banque de France, recently revealed that the central bank's prudential supervisory authority, ACPR, is working with the industry to certify smart contracts. "In 2024, we will continue to work with stakeholders on an important proposal from the ACPR, which is to mandate certification of smart contracts before their use." Mr. Beau pointed out that France's early regulations on crypto assets significantly influenced the MiCA regulation.

ChainCatcher news, according to DL News, last week at this year's ETH Berlin event, Ethereum co-founder Vitalik Buterin described some of his regrets regarding the initial design of Ethereum. These issues range from the development of the Ethereum Virtual Machine to smart contracts and the proof-of-stake consensus mechanism. He also stated that even as Ethereum becomes more mainstream, it is still misunderstood.Vitalik stated, "The original EVM design for Ethereum chose 256-bit processing instead of 64-bit or 32-bit, and the initial design was overly complex for 256 bits, which is very inefficient, and can generate a lot of redundant data on the blockchain even when executing simple tasks. Ethereum should have switched from proof-of-work to proof-of-stake consensus mechanism earlier in 2022; we ultimately wasted a lot of time trying to perfect proof-of-stake."Vitalik also mentioned, "The automatic logging of Ethereum transfers should have existed from the beginning; we could have completed the coding in just 30 minutes, yet it became an EIP." The EIP-7708 submitted by Vitalik on May 17 will make this precise change. If he could choose again, he would use SHA-2 for Ethereum's encryption instead of the currently used encryption algorithm called Keccak.

ChainCatcher news, according to The Block, the Dfinity Foundation is launching a new API that allows the Internet Computer to read and write smart contracts on any EVM.It is reported that Internet Computer smart contracts have already collaborated with Bitcoin and Ethereum on projects such as Bioniq, Bitfinity, and Omnity.

ChainCatcher news, the Bitcoin Layer 2 network Bitfinity has launched its virtual machine Bitfinity EVM to introduce smart contracts into the Bitcoin protocol and utilize Runes to support Bitcoin decentralized finance (DeFi) applications. The Bitfinity EVM is designed to allow developers to deploy Bitcoin-based Solidity smart contracts, enabling them to transfer BTC, Ordinals, and Runes.

ChainCatcher news, according to Cointelegraph, hackers successfully stole funds by exploiting the smart contracts of the now-defunct decentralized finance (DeFi) lending protocol Yield Protocol.Yield Protocol shut down in December 2023, citing difficulties in meeting business demands and global regulatory pressures. After the shutdown, Yield Protocol repeatedly advised investors to close their positions, withdraw funds, and repay outstanding loans. Despite the warnings, an unknown hacker still stole approximately $181,000 worth of crypto assets from Yield's strategic contracts on the Arbitrum blockchain. The hacking incident was first announced by blockchain investigation firm PeckShield and later confirmed by CertiK.Following an investigation, CertiK found: "The attacker exploited the discrepancy between the mining pool token balance and the total supply of flash loan assets, then withdrew additional mining pool tokens." Official support for Yield Protocol ended on February 2, and attempts to recover the stolen funds from the hacker seem unlikely.

According to ChainCatcher news, in an official announcement on social media, DFINITY stated that ICP smart contracts will be able to directly engrave Runes on Bitcoin, inscribe Ordinals, send and receive BRC-20 tokens, and sign Taproot transactions.

ChainCatcher message, dYdX founder Antonio posted on platform X that smart contracts, AMM treasury, permissionless listing market, pre-launch market, and other features will be launched in the coming months.

ChainCatcher news, the "Web3 Insight Summit" co-hosted by ChainCatcher, RootData, and Oak Grove Ventures was held today at the Renaissance Harbour View Hotel in Hong Kong. During the conference, Dorothy, the Growth Manager of the Rollup platform AltLayer, shared a presentation titled "Restaked Rollups," introducing the application prospects of Rollup technology in the Web3 field.Dorothy mentioned that Rollup is essentially a new type of smart contract, and RaaS providers make launching a Rollup as simple as deploying a smart contract, eliminating the barriers of deployment and hosting for project teams. It is expected that by the end of 2024, there will be over 1,000 Rollups. Existing Rollups still face significant trust issues, such as single ordering, censorship, lack of fraud proofs, and overly centralized verification. AltLayer's Restaked Rollup differs from existing OP stacks and zk Rollups in that it has a modular framework for any Rollup stack, is decentralized, offers higher security, and provides safer and faster settlements.Restaked Rollup is mainly divided into three middleware components: the decentralized validator VITAL, the fast settlement guarantor MACH, and the decentralized sequencer SQUAD. Among them, VITAL can verify the correctness of Rollup states and challenge validity proofs or generate and verify ZK proofs; MACH can provide fast settlements in seconds and offer shared security guarantees for RPC/cross-chain bridges/transactions; SQUAD makes sequencing more decentralized by allowing the community to participate in ordering and staking. MACH Alpha will be launched after the EigenLayer restaking mainnet goes live, allowing users to participate in token staking.The "Web3 Insight Summit" is hosted by ChainCatcher, aiming to gather the most thoughtful and innovative Web3 veterans from around the world to provide more constructive insights for the industry, present more industry insights, and help Web3 move towards the mainstream.

ChainCatcher news, Arbitrum has proposed an AIP to activate Arbitrum Stylus on the Arbitrum One and Arbitrum Nova mainnets and enable the next generation of WebAssembly smart contracts. Stylus is a complement to the EVM (Stylus contracts and EVM contracts are fully interoperable) and is a new programming environment that includes a WebAssembly-based virtual machine, CLI, and a specification SDK that defines patterns and frameworks for writing smart contracts. This allows developers to write smart contracts using new programming languages such as Rust.It is reported that if the Arbitrum DAO approves the AIP, discussions on the proposal will be initiated in the forum, completing the review and remaining code changes, voting on Snapshot to enable Stylus on Arbitrum Sepolia, merging the Stylus branch into the standard Nitro codebase, testing on the public testnet simulating the production environment, and deploying the upgraded on-chain voting on Arbitrum One and Arbitrum Nova.

ChainCatcher news, Polygon posted on platform X that the Miden Compiler is being deployed to Polygon Miden as a rollup supporting smart contracts written in Rust, and it may also support other developer-friendly languages in the future. It can serve in two ways:As a compiler backend for existing languages, aiming to target Miden Assembly;As a means to compile WebAssembly code generated by another compiler into Miden Assembly.