Bitcoin developer Ben Allen has secured a $100,000 grant from investment firm Maelstrom to enhance Payjoin, a tool designed to improve Bitcoin's scalability and privacy. The funding will support Allen's development of a Payjoin developer kit alongside Dan Gould, as announced on May 20. Payjoin allows both senders and receivers to contribute inputs in a transaction, enhancing privacy and consolidating outputs for better scalability. Maelstrom's chief investment officer, Arthur Hayes, emphasized the importance of improving financial privacy in Bitcoin, noting that even minimal adoption could disrupt assumptions made by financial surveillance firms. Allen intends to create benchmarks for downstream developers to integrate Payjoin into wallets, with the ultimate goal of simplifying user experience and broadening adoption. The Maelstrom representative highlighted that a critical metric for success would be the inclusion of Payjoin in widely used open-source wallets, particularly BitcoinCore.

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