ChainCatcher news, on May 15th Eastern Time, the Bitcoin native ZK Rollup project GOAT Network officially launched the GOAT BitVM2 testnet, becoming the world's first online BitVM2 testnet, achieving the transition from white paper to testnet within a week, marking the accelerated advancement of Bitcoin L2 practicality.GOAT BitVM2 has compressed the challenge period from the original 14 days to less than 1 day, making it the most powerful and closest to real deployment BitVM2 architecture currently available. Its architecture integrates zkMIPS zero-knowledge proofs, decentralized sorters, and a multi-round random challenge reward mechanism, forming a complete Bitcoin native ZK Rollup solution.The code is fully open source, and the testnet is fully accessible, allowing developers to participate in staking, challenging, and bridging operations, with the recruitment of challenge nodes starting simultaneously.The core team of GOAT Network stated: "Without a practical incentive mechanism, no matter how strong the security is, it cannot be realized. BitVM2 is just the starting point, and we hope to truly bring Bitcoin into a usable and scalable Layer2 era through the practice of GOAT BitVM2."

ChainCatcher message, Bitcoin ZK Rollup GOAT Network releases GOAT BitVM2 white paper, proposing the first feasible Bitcoin native ZK Rollup protocol.This protocol introduces multiple innovations based on the advantages of the original BitVM2 protocol, systematically addressing issues such as Operator double-spending attacks, inefficiencies in the challenge process, and insufficient incentive mechanisms. It introduces a cryptoeconomic security layer, accelerates dispute resolution, and aligns incentives in the challenge economy, ensuring high activity under the assumption of 1-of-n honest nodes while inheriting the native security of BTC, and reduces the originally planned 14-day challenge period to less than 1 day.

ChainCatcher news, according to Chainwire, the Bitcoin Layer 2 project GOAT Network has announced the launch of the BitVM2 testbed.GOAT Network adopts the latest BitVM2 standard and plans to integrate BitVM2 into the future GOAT Bridge, aiming to achieve a milestone in inheriting the native security of Bitcoin Layer 1.Kevin Liu, co-founder of GOAT Network, stated: "Bitcoin maximalists have long been skeptical of Layer 2 solutions due to the vulnerabilities of multi-signature mechanisms to hacking and manipulation, which pose risks." "With the upcoming GOAT Bridge powered by BitVM2, we will directly address these issues by providing a fully open-source and verifiable framework."

ChainCatcher news, based on BitVM2's on-chain ZKP verification infrastructure and the Babylon ecosystem project Fiamma has been invited to join the BitVM Alliance organized by Robin Linus, the founder and core developer of BitVM.The alliance was internally established a month ago, with members including Fiamma, Zerosync, Element Labs, Citrea, and Strata (incubated by Alpen Labs), a total of five teams, all of which are core contributors to the BitVM code. The primary goal of the alliance is to develop the first BitVM bridge by the end of the year.

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, BOB co-founder Alexei Zamyatin posted on social media that Bitcoin scalability developers have released a new white paper on the second version of the Bitcoin Virtual Machine, BitVM2, and the updated BitVM Bridge. The white paper details the latest achievements in improving transaction efficiency within the Bitcoin network by enhancing transaction processing capabilities and, in some cases, updating cryptographic methods.The white paper states that the main goal of BitVM2 is to increase Bitcoin's transaction capacity without modifying the core Bitcoin code or principles of decentralization. Unlike V1, BitVM2 introduces a permissionless system that allows any user to challenge suspicious transactions.Additionally, the white paper mentions improvements to the BitVM Bridge, focusing on reducing capital requirements and shortening asset lock-up periods, which support cross-chain transactions between Bitcoin and Rollup.Previously, Robin Linus, the project lead of ZeroSync and creator of BitVM (who is also involved in the development of V2), first introduced BitVM last October.