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Bitcoin token for use on Citrea; to reverse this process, the token must be burned, after which Bitcoin can be withdrawn on the Bitcoin blockchain.Clementine leverages BitVM, a computational paradigm introduced by Bitcoin developer Robin Linus last year, designed ultimately to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.

ChainCatcher news, the Dutch cryptocurrency exchange Bitvavo has reached an agreement with Nasdaq to deploy its market surveillance technology. This move aims to enhance trust, transparency, and integrity in its market by enabling its compliance framework to keep pace with the rapid growth and development of the business.Bitvavo was founded in 2018 in Amsterdam and is registered with the Dutch Central Bank (DNB), supporting over 300 digital asset services.

ChainCatcher news, according to the Web3 asset data platform RootData monitoring, at 23:05 Beijing time today, 1 million RNDR was transferred from an unknown wallet to Bitvavo, worth 6.6744 million USD.

ChainCatcher news, OKX Ventures announced the completion of a strategic investment in Bitlayer. Bitlayer will establish the first Bitcoin security-equivalent and Turing-complete Bitcoin Layer 2 based on the BitVM paradigm, aiming to become the computing layer for Bitcoin. At the end of April, Bitlayer launched a $50 million developer incentive program called Ready Player One, attracting over 500 project teams from various sectors including infrastructure, DeFi, inscriptions, SocialFi, and cross-chain bridges.Dora Yue, founder of OKX Ventures, stated: "The native design of Bitcoin ensures a decentralized, trustless, and highly secure peer-to-peer trading system. OKX Ventures has early investments in Bitcoin's infrastructure, such as Rollup, Stacks scaling solutions, and innovations in Bitcoin DeFi. Bitlayer positions itself as the Bitcoin computing layer, characterized by its framework design that uses BitVM for off-chain computation and on-chain verification, combined with DLC (Discreet Log Contract) to achieve a trustless bi-directional cross-chain bridge. Bitlayer inherits the high security advantages of the Bitcoin network and is also compatible with multiple virtual machine environments, including EVM (Ethereum Virtual Machine). The Bitlayer mainnet V1 version was launched in April, supporting bi-directional cross-chain for EVM-compatible environments and mainstream assets. We look forward to enhancing the use cases of the Bitcoin network in Q3 of this year, focusing on product security and innovations in the diversity of digital assets such as NFTs, while ensuring user privacy."

ChainCatcher news, the official website of the Hong Kong Securities and Futures Commission has updated the information on virtual asset trading platform license applications, adding three virtual asset trading platforms: bitV, YAX, and Bullish, with the corresponding operator company names being: HighBlock Limited, YAX (Hong Kong) Limited, and Bullish (GI) Limited.In addition, as of now, the number of institutions that have submitted applications for virtual asset trading platform licenses to the Hong Kong Securities and Futures Commission has reached 16, with three institutions being returned/withdrawn, namely: Ammbr, BitHarbour, and Meex (returned on February 7).

ChainCatcher news, according to Cointelegraph, the Netherlands-based cryptocurrency exchange Bitvavo has successfully registered as a digital asset service provider with the French Financial Markets Authority (AMF) and will provide services to users in France. Previously, Bitvavo had received approval from Austrian and French regulators.A recent survey conducted by the French Financial Markets Authority (AMF) showed that more French people own cryptocurrencies (9%) compared to traditional stocks (7%) and bonds (2%).

ChainCatcher news, WonderFi's Canadian crypto exchange Bitbuy has acquired the crypto trading platform Bitvo.com and all its customers, adding over 17,000 user accounts, which generated over $235 million in trading volume over the past year.Currently, WonderFi has integrated 5 exchanges out of 11 registered crypto trading platforms in Canada: Bitbuy, Coinberry, Coinsquare, CoinSmart, and Bitvo.

ChainCatcher message, ZeroSync project leader and BitVM developer Robin Linus published "BitStream: A Decentralized File Hosting Incentive Protocol Powered by Bitcoin Payments," proposing a decentralized file hosting incentive protocol called BitStream, which offers a sustainable alternative. For example, a user might upload a video only once, incurring a one-time fee, but if the video becomes very popular and is downloaded 100,000 times, the server's bandwidth costs could far exceed the initial upload revenue.BitStream's pay-per-download method provides a solution: it allows servers to charge for each download, ensuring that revenue scales with the media's popularity and demand, thereby creating a balanced and profitable ecosystem. There is no need to rely on trust or heavyweight cryptography. Clients and servers use an optimistic protocol to execute the coin atomic exchange of files. The server responds with a file that is claimed to be correctly encrypted. The client pays for the decryption key via the Lightning Network, and if the file cannot be decrypted correctly, the client can economically punish the cheating server, which strongly incentivizes the server to act honestly.

ChainCatcher news, ZeroSync project leader and BitVM developer Robin Linus posted on social media that we have just broadcasted the first mainnet transaction implementing the Blake3 hash lock in Bitcoin Script.It is reported that Robin Linus previously published a white paper titled: "BitVM: Compute Anything On Bitcoin", where BitVM stands for "Bitcoin Virtual Machine". It proposes a solution for Turing-complete Bitcoin contracts that can be achieved without changing the consensus of the Bitcoin network.

ChainCatcher news, in response to a Cointelegraph interview, Bitcoin developer Super Testnet stated that the purpose of BitVM is to expand Bitcoin, rather than to launch decentralized financial applications similar to Ethereum on the network.The BitVM white paper was released by Robin Linus, the project lead of ZeroSync, on October 10, and was technically supported by the anonymous developer Super Testnet, who implemented the first proof of concept for BitVM and is committed to expanding its capabilities. After the release, some industry experts believe that BitVM will bring DeFi to Bitcoin, just as the Ethereum Virtual Machine (EVM) did for Ethereum.Super Testnet stated that building a decentralized trading platform on Bitcoin would be a step backward. BitVM focuses on scalability rather than implementing smart contracts and issuing a large number of altcoins; the real killer application is to scale Bitcoin. Additionally, BitVM can fix a flaw in the Lightning Network.

ChainCatcher news, according to Whale Alert monitoring, 425,322,309 XRP (approximately $213,135,940) was transferred from Bitvavo to an unknown wallet (address starting with r4fxv).Previously, according to Whale Alert monitoring, on September 2 at 23:31:12 Beijing time, a whale address starting with rp6J transferred 424,875,620 XRP to an unknown address, with a total value of approximately $213 million.It is reported that this whale address first aggregated a total of 427 million XRP tokens to an address starting with rK3P through multiple addresses on August 20; thereafter, the address starting with rK3P transferred 750,000 tokens to the Dutch exchange Bitvavo and transferred the remaining tokens to the next address; this process was repeated, ultimately aggregating to the current address. In the past week, this whale has cumulatively transferred 3.55 million XRP to the exchange during this transfer process, approximately $1.76 million.