bitvm

GOAT Network officially releases GOAT BitVM2 Testnet V3, taking a key step towards the implementation of native Bitcoin zkRollup. This testnet uses Bitcoin as the final adjudication layer, aiming to allow BTC to participate in real financial activities without relying on custodians, committees, or multi-signature trust assumptions.Unlike most BTCFi solutions that depend on custodians or majority honest assumptions, GOAT BitVM2 utilizes the BitVM2 mechanism, allowing erroneous claims or malicious actions to be challenged in extreme cases, ultimately adjudicated by the rules of the Bitcoin mainnet.Testnet V3 features key optimizations such as off-chain execution, Bitcoin-anchored ordering, and Bitcoin adjudicated withdrawals and dispute mechanisms. It will later introduce BitVM2-GC, significantly reducing challenge costs and making security assumptions verifiably realistic for the first time.

ChainCatcher news, the Bitcoin Layer 2 network GOAT Network announced the official launch of the BitVM2 testnet Beta, and achieved the first real-time proving system running in a production environment, becoming the first Bitcoin zkRollup project to support instant withdrawal initiation and full-chain visual proof.According to reports, the system is based on a pipeline parallel architecture and a distributed GPU prover network, combined with ZKM's zkVM "Ziren", achieving three-stage parallel processing for block proof (2.6s), aggregate proof (2.7s), and Groth16 proof (approximately 10.4s), supporting real-time proving capability with a block time of 3.4 seconds, allowing users to initiate withdrawals without waiting.GOAT Network stated that all peg-out operations have been digitized, visualized, and verifiable on-chain, and are presented in real-time through a public UI page. The current system is fully open-source, does not rely on trust assumptions, and has built a complete closed loop from BTC deposit, on-chain interaction to withdrawal. The project team believes that this capability will redefine the technical standards of Bitcoin zkRollup and lay the foundation for the practical usability of BTCFi.

ChainCatcher news, the first Bitcoin sustainable yield ZK Rollup network GOAT Network has released a new generation of reusable homomorphic obfuscation circuit architecture based on BitVM3, which has taken the lead in solving two major problems in Bitcoin native zk Rollup: "one-time limitation" and "massive off-chain data." The new solution utilizes the Label Forward Propagation mechanism, enabling the cryptographic circuit to have infinite reuse capability and compressing off-chain data from hundreds of GB to just a few MB, achieving an improvement of over 1000 times.It is reported that this solution is based on a series of key optimizations made by the GOAT team on the BitVM3 paper first published by Robin Linus.With this architecture, GOAT Network has made Bitcoin ZK Rollup not only "feasible" but also "deployable" for the first time, advancing BitVM from an experimental concept to a deployable stage. It is noted that the original BitVM3 architecture is still 5 to 10 years away from practical expectations, while GOAT's implementation shortens this time frame to 6 to 12 months.

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, the first Bitcoin Layer 2 solution built on the BitVM paradigm, Bitlayer, officially announces the launch of the first minimal trust BTC bridge powered by BitVM technology, the Finality Bridge.The Finality Bridge is built on BitVM technology, featuring high security, support for native yield, and programmability. It allows users to securely mint BTC into YBTC (Yield BTC) tokens in a minimal trust manner, participating in liquidity mining, staking, or lending in DeFi scenarios within the Bitlayer and other blockchain ecosystems, all while obtaining diversified integrated yields without worrying about complex conversion processes and high transaction costs. Currently, the Bitlayer Finality Bridge is live on the testnet, allowing users to test and experience it. The technical team will launch more new features after collecting feedback from the testing phase.

ChainCatcher news, Nubit, in collaboration with partners such as ZeroSync, Alpen Labs, and Citrea, has launched BitVM IDE, a tool for developing and verifying zero-knowledge proofs (ZKP) integrated on Bitcoin.This tool allows developers to experience the entire process of writing zero-knowledge circuits and directly verifying zero-knowledge proofs on the Bitcoin network, significantly reducing the complexity of development for Bitcoin and proving a feasible new path for application development that is trustless and highly private.

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, the Bitcoin ZK Rollup protocol Citrea has deployed its BitVM-based bridge Clementine to the Bitcoin testnet.The Citrea team describes Clementine as a "trust-minimized bidirectional peg program," essentially a way to lock Bitcoin on the main chain and then mint an equivalent Bitcoin token for use on Citrea; to reverse this process, the token must be burned, after which Bitcoin can be withdrawn on the Bitcoin blockchain.Clementine leverages BitVM, a computational paradigm introduced by Bitcoin developer Robin Linus last year, designed ultimately to enable Ethereum-style smart contracts on Bitcoin while also paving the way for zero-knowledge computation.

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.