According to Deep Tide TechFlow, on May 20, Arthur Hayes' family office Maelstrom provided a grant of $100,000 to Bitcoin developer Ben Allen to improve the Bitcoin privacy transaction tool Payjoin.

This tool was proposed by Nicolas Dorier in 2019 through Bitcoin Improvement Proposal (BIP) 78, allowing both parties in a transaction to jointly contribute transaction inputs, enhancing Bitcoin's privacy and scalability. The grant will be paid monthly in Bitcoin for a year.

Arthur Hayes stated that even a small number of users adopting Payjoin could break the key assumptions of financial monitoring companies regarding multi-input transactions.