A trader creates a $400 million Bitcoin long position

According to Bloomberg, Coinbase is suing Michigan, Illinois, and Connecticut, opposing their attempts to regulate the prediction market and arguing that the states lack jurisdiction over it. （Cointelegraph）

[Synthetix Launches Perpetual Contract DEX on Ethereum Mainnet] On December 19, the decentralized derivatives protocol Synthetix announced the launch of a perpetual contract DEX on the Ethereum mainnet. It adopts a hybrid CLOB model with on-chain asset custody and off-chain matching to bypass mainnet latency and high gas costs. The first batch supports BTC, ETH, and SOL perpetual contracts, with up to 50x leverage. Plans include introducing multi-collateral margin, RWA support, and incentive programs. The platform's market-making and liquidity are provided by the SLP Vault. Synthetix aims to become the first successful CLOB perp trading platform on the Ethereum mainnet.

[US FBI Shuts Down Crypto Money Laundering Platform E-Note Involved in Over $70 Million and Indicts Its Russian Operator] The U.S. Department of Justice revealed that the Federal Bureau of Investigation (FBI), in collaboration with European law enforcement agencies, has dismantled the transnational money laundering platform E-Note, which primarily provided cryptocurrency cash-out services for cybercriminals. The U.S. Attorney's Office for the Eastern District of Michigan has indicted 39-year-old Russian operator Mykhalio Petrovich Chudnovets on charges of conspiracy to commit money laundering, alleging that he used E-Note since 2010 to facilitate the transfer of criminal proceeds. The platform has reportedly processed over $70 million in illicit funds since 2017. Law enforcement agencies have seized related servers and domain names, and if convicted, the suspect faces a maximum sentence of 20 years in prison.

BBX News: Yesterday, the intention of global listed companies to allocate encrypted assets was clarified: Special Fundraising for ETH Purchase: TORICO (TYO: 7138) in Japan announced plans to raise approximately 4.7 billion yen (approximately 30.17 million US dollars) and use all the funds raised to purchase ETH. The fund under the Web3 platform Mint Town will become its largest shareholder. - Public intention to increase holdings: Jack Mallers, CEO of Twenty One Capital Inc (NYSE: XXI), has publicly stated plans to "significantly increase BTC holdings," clarifying the company's strategic direction. Listed companies continue to deepen their cryptocurrency asset strategic layout through special financing and public statements. Source: bbx.com

[Aptos Announces Proposal AIP-137 to Introduce Quantum-Resistant Signature SLH-DSA] Aptos has announced proposal AIP-137, which aims to introduce quantum-resistant signatures to address the network's reliance on digital signatures for ownership verification, transaction authorization, and overall security. Although existing cryptographic schemes are currently secure, this proposal seeks to mitigate the potential risks posed by future quantum computers that could forge schemes and compromise account security. If approved through governance review, Aptos will introduce SLH-DSA, standardized as FIPS 205, as an optional account signature type, making it one of the first blockchains to natively support quantum-resistant accounts, with existing accounts remaining unaffected.