ChainCatcher news, according to CoinDesk, Bitcoin developer Robin Linus proposed a theoretical method last year aimed at making the Bitcoin blockchain more programmable. Today, he has launched a second iteration called "BitVM2," which reportedly has significant improvements that bring this concept closer to real-world deployment. The project will rely on advanced cryptography and innovative design to establish a secure "bridge" that transfers Bitcoin from the main network to a secondary network known as "rollup."According to a white paper released this week by Linus and five co-authors, the basic setup involves using cryptography to compress programs into subprograms, which are then executed in Bitcoin transactions. Subsequently, these programs are "verified" in three on-chain transactions, essentially ensuring that no one is attempting to cheat or steal. According to one of the co-authors, Alexei Zamyatin, previous versions required up to 70 transactions for verification. It is reported that Alexei Zamyatin is working separately on the Bitcoin L2 network Build on Bitcoin (BOB).A key improvement in the new version is that anyone can challenge suspicious transactions, a feature known as "permissionless challenges." The original BitVM was released last October but was never truly deployed in practice, with only a fixed group of operators able to initiate challenges."This design brings us these significant improvements," Zamyatin said in a video interview, "We now have a complete and comprehensive description of the BitVM paradigm."

ChainCatcher news, according to Blockworks, Fidelity's digital assets subsidiary has released an Ethereum investment report stating that investors can view Ethereum as an "aspirational" form of currency, but "to become a widely accepted form of currency, it may face much more resistance than Bitcoin."The report states that the uncertainty surrounding Ethereum's future upgrades and the number of circulating tokens presents a series of obstacles before Ethereum's supply can "reliably align with the supply of other value storage assets." The report notes: "No other digital asset seems likely to be better than Bitcoin, as Bitcoin is viewed by some as the safest, most decentralized, and most sound digital currency to date, and any 'improvement' requires trade-offs." However, the report believes that Ethereum's use of smart contracts unlocks a new level of programmability, which is Ethereum's "true differentiating factor." Additionally, Ethereum can generate yields through staking.Fidelity's ultimate conclusion is that the increase in activity on Ethereum is indeed driving demand for block space, thereby benefiting token holders; meanwhile, there remain "complex, nuanced" factors, including protocol and scalability upgrades, which create uncertainty for investors regarding Ethereum's future.

ChainCatcher news, the lightweight blockchain Mina has released the Mina Public Roadmap, which is divided into 5 phases: Trust Minimization, ZK Programmability, Settlement Layer Performance, Recursive Rollups, and Road to DAOification.Among them, Trust Minimization will protect the protocol from centralized attacks and biases, and will add decentralized data storage to Mina's functionality. ZK Programmability will build a better ZK programmable layer on Mina through scalable verification and zero-knowledge privacy; Settlement Layer Performance will optimize Mina's latency, finality, and throughput; and trustless bridging between chains will be achieved through recursive ZKP. (Source link)