ChainCatcher news, according to Cointelegraph, Cardano has announced the completion of integration with the smart contract platform BitcoinOS, bringing over $1.3 trillion in Bitcoin liquidity to its decentralized finance (DeFi) ecosystem.It is reported that the integration will utilize zero-knowledge (ZK) cryptography technology to achieve a trustless connection between Bitcoin assets and Cardano through the BOS Grail bridging protocol. This protocol employs BOS's ZK BitSNARK verification protocol, allowing Bitcoin transactions and assets to bridge to the Cardano blockchain without sacrificing decentralization and security.Ken Kodama, CEO of Emurgo, the leading organization in Cardano's Web3 adoption, stated that this integration "has the potential to unlock new cross-chain functionalities" and may drive the adoption of DeFi. He emphasized that BOS's bridging and zero-knowledge technology will provide a secure and trustless access route for Cardano's "users, projects, and developers" to Bitcoin.Notably, BOS has partnered with the layer two scaling solution Merlin Chain to deploy the BitcoinOS Grail bridging protocol on September 10. Merlin Chain founder Jeff Yin stated that this collaboration will provide users with "trustless, decentralized" bridging services for Bitcoin native assets, enabling cross-chain transactions without centralized security measures through zero-knowledge proofs directly written to the Bitcoin blockchain.

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, according to Cointelegraph, the Federal Bureau of Investigation (FBI) has been criticized for allegedly violating the terms of the MIT License in its smart contracts. X user 0xCygaar (self-identified as an AbstractChain contributor) publicly accused the agency of not properly including the required license attribution when using the OpenZeppelin library (an open-source code resource). If confirmed, this omission could constitute a violation of copyright law, as the MIT License explicitly requires that any substantial use or modification of its code includes the original license. X users claim they have warned the FBI to "take necessary measures against the FBI."The MIT License governs the use of blockchain technology, particularly within the Ethereum ecosystem. It can be distributed, modified, and used for free as long as the original license terms are followed. A public inspection of the FBI's smart contract on Etherscan shows that the code is marked as "unlicensed," sparking varied reactions from the community. The implications of the alleged violation could be serious, as the MIT License, while generally considered developer-friendly, is legally binding, and if OpenZeppelin chooses to do so, it can take legal action by sending a cease-and-desist order requiring the FBI to rectify the violation or stop using the code. However, any formal lawsuit against the FBI would face challenges due to sovereign immunity.

ChainCatcher news, cryptography researcher @LehmannLorenz stated on the X platform that his computer was nearly compromised, and just one click could install a malicious extension. The developers behind the extension were unverified, yet it garnered 1.7 million downloads within a day of release (more than any other extension) and a perfect 5/5 star rating. After downloading the malicious extension and extracting its contents, everything appeared normal - except for the obfuscated "extension.js" file that ran during installation. Log files indicated that the script ultimately encountered an error, relying on PowerShell execution, running entirely in memory without leaving any traces on the disk.In response, Slow Mist's Yu Xian stated that this is a supply chain net attack targeting Solidity smart contract developers. The editor environment is a high-risk area for supply chain attacks. They have always tried to isolate what they can, avoid installations whenever possible, and ensure the "just enough" principle. Anything flashy is thrown onto a separate computer or virtual machine.

ChainCatcher news, Uniswap Labs announced on the X platform that the Uniswap v4 security competition will end on October 1st at 20:00 Beijing time. Security researchers must submit vulnerability reports before the deadline to share a prize pool of $2.35 million.According to the announcement from Uniswap Labs, the prizes will be allocated based on the severity of the vulnerabilities, with a maximum prize of $2.25 million. Researchers can earn rewards by submitting vulnerability reports on smart contracts, and those who submit earlier will receive an additional 20% bonus incentive.

ChainCatcher news, Hardhat Chad, the founder of the mining project Ore on the Solana chain, announced on the X platform that Regolith Labs has launched Steel, a brand new modular framework designed for building smart contracts on Solana.Steel enables developers to build programs with minimal boilerplate code while providing flexible functionality options. The framework aims to enhance contract performance, simplify the development process, and bring more positive contributions to the Solana community.

According to ChainCatcher news, as reported by Xinhua Finance, the national-level scientific journal "Financial Electrification," supervised by the People's Bank of China, will publish an article titled "Exploring the Standardization of Practical Experience in Blockchain Digital Bond Innovation" in the second half of August 2024. The article is authored by the Central Government Securities Depository and Clearing Co., Ltd.'s China Bond Blockchain Digital Bond Project Team.The article states: As a national pilot unit for blockchain innovation applications, the Central Government Securities Depository and Clearing Co., Ltd. is actively promoting the implementation and standardization of the blockchain digital bond project. It is necessary to summarize and form specialized standards in a timely manner, striving to achieve replicable and scalable practices to promote the formation of an industry ecosystem and standardized development. Since exploring blockchain technology in 2018, it launched the country's first blockchain digital bond issuance platform in 2021 and has continuously optimized and enhanced system functionality and cross-chain interoperability.The platform has supported the issuance of multiple bonds, covering institutions such as state-owned banks and securities companies, promoting the integrated development of the digital economy and the real economy, while strengthening regulatory capabilities and industry norms. As the initiator of the alliance chain and the provider of system services, the Central Clearing Company is responsible for formulating business operation rules, establishing and improving alliance governance mechanisms, and maintaining the safe and stable operation of the system; it explores the effective coordination of necessary centralized management principles as stipulated by laws and regulations with distributed ledger technology, consensus algorithms, and smart contracts.The alliance chain does not change the legal central confirmation attributes and member access management authority of the Central Clearing Company. It efficiently achieves consensus formation in business processes through smart contracts and enhances the auditability, verifiability, and multi-party supervision of operations by the Central Clearing Company and market institutions through distributed ledgers and encryption algorithms. Market institutions, under the premise of complying with the alliance system, can orderly carry out business innovation, provide beneficial feedback and cooperative supervision, and jointly promote the high-quality development of the bond market.

ChainCatcher news, the European tokenization platform Tokeny announced a partnership with 21X DLT (Distributed Ledger Technology) trading and settlement system (DLT TSS). This is the first platform to operate under the new EU DLT ecosystem. Tokeny's DINO is an open distribution network for tokens compliant with the ERC-3643 standard. This collaboration will connect DINO to 21X.21X is a smart contract-based trading platform that offers compliant trading of financial instruments under the EU DLT framework. The company is said to be collaborating with several tokenization firms to facilitate the matching, trading, and settlement of tokenized assets.By connecting with DINO, Tokeny will be able to facilitate the trading of digital securities and real-world assets (RWA). DINO is reportedly collaborating with over 50 liquidity platforms.

ChainCatcher news, friend.tech stated on social media that there are currently no plans to shut down or stop the friend.tech web application. At the same time, friend.tech has taken technical measures to ensure that no changes will be made in the future to the smart contracts deployed on the Base network that could potentially increase or incur new fees. The platform emphasizes that these measures will not affect the current functionality of the friend.tech web application, and users can continue to use all known features normally.Previous news, the development team of the Web3 social network Friend. Tech relinquished control over its smart contracts on September 8.

ChainCatcher news, according to The Block, the developers of the Web3 social network Friend.Tech have relinquished control over the smart contracts, effectively shutting down the network. Despite an initially rapid growth, the release of version V2 and the airdrop failed to reignite user enthusiasm.On September 8, the developers invoked the smart contract functionality to transfer control to an empty address on Ethereum, locking the current system and preventing further changes. The team clarified in an announcement on the X platform: "Currently, any fees from the smart contract or website no longer flow to the multi-signature wallet of the Friend.Tech development team." Although the platform appears to continue operating, the relinquishment of control has made it nearly impossible to introduce new features.According to data from The Block, since June, the protocol has generated only about $60,000 in protocol fees. The revocation of contract ownership has blocked new teams interested in adding features to the social platform from acquiring it.

ChainCatcher news, encrypted KOL cygaar posted on X, stating that Abstract has launched the Abstract Global Wallet (AGW), "We are building a brand new chain-level experience—users will never need to download extensions, and applications can seamlessly be 'plug and play'." AGW leverages multiple features of Abstract's native account abstraction protocol.According to reports, AGW aims to address issues such as fragmentation, unclear user experiences, and opaque transaction flows. At its core, AGW is a smart contract wallet driven by account abstraction. AGW will utilize multiple AA features to enhance the user experience.The default signer for AGW will be an embedded wallet powered by Privy. Privy allows users to log in seamlessly via social media, email, passwords, or existing EOAs. The Privy signer will initiate transactions on behalf of the AGW smart account and will also be able to provide real-time transaction simulations and fraud prevention at the point of transaction. The team will also allow users to control AGW in the future using existing EOAs and passwords.

ChainCatcher news, according to The Block, blockchain security audit provider Zellic has acquired the smart contract auditing platform Code4rena. This is its first acquisition, aimed at providing clients with more comprehensive security review services.The CEO of Code4rena stated that it will continue to operate independently.

ChainCatcher news, according to the official website, the OKX Web3 wallet and the liquidity center have now connected to the B3 testnet. Users can directly receive B3 testnet ETH test tokens through the OKX Web3 wallet for on-chain interactions on the testnet and experience the cross-chain bridge and gaming projects of the B3 testnet.It is reported that B3 is an L3 on Base, dedicated to establishing a seamless and open gaming ecosystem that changes the ownership and incentive models for gamers and developers. The OKX Web3 liquidity center supports one-stop access to the most popular Web3 ecosystem testnet tokens, aiming to assist users in developing, testing, and optimizing smart contracts on the testnet. Users can connect their OKX Web3 wallet, select the test network, click "Receive," and complete tasks to experience it immediately. The OKX Web3 wallet is an industry-leading one-stop Web3 gateway, now supporting over 100+ public chains and providing a unified experience across app, plugin, and web platforms.