PANews reported on May 20 that according to Cointelegraph, the investment institution Maelstrom provided a $100,000 grant to Bitcoin developer Ben Allen to improve the development of the privacy transaction tool Payjoin. This technology can effectively enhance Bitcoin privacy and improve the efficiency of transaction output merging by allowing both parties to jointly construct transactions (BIP-78 proposal), thereby improving network scalability. This grant adopts an unconstrained and flexible model and is issued monthly in the form of Bitcoin.

Arthur Hayes, Chief Investment Officer of Maelstrom and co-founder of BitMEX, pointed out that even if Payjoin is only adopted in small quantities, it can break the key assumption of Chain Analysis Company that "multiple inputs of the same transaction must belong to the same entity", thereby improving the privacy level of the entire Bitcoin network. Developer Allen will optimize the Payjoin development kit full-time, focusing on lowering the threshold for wallet integration, with the goal of promoting the adaptation of mainstream open source wallets (such as Bitcoin Core). Maelstrom said it will continue to support developers in the field of Bitcoin privacy and is currently actively looking for other candidates with relevant experience.