The lead developer of PDK spoke to Atlas21’s microphones explaining how Payjoin can raise the privacy level for all Bitcoin network users.

Dan Gould, lead developer of Payjoin Dev Kit, spoke to Atlas21’s microphones about Payjoin adoption, technical challenges, benefits, and the development status of the Payjoin Dev Kit library.

What is a Payjoin transaction?

“I think of Payjoin more as a coordination mechanism than as a transaction format. It’s the simplest way for two parties to group their inputs into a single transaction, essentially it allows batching between two parties. For example, a deposit to an exchange can directly fund withdrawals because the exchange can group its own inputs with the incoming deposit. The other use case is the classic one: you have a sender and a receiver, and the receiver generates an address with associated Payjoin metadata. When that QR code is scanned, the sender sends the transaction to the receiver through a side channel instead of on the Bitcoin network. The receiver can then automatically consolidate their own inputs by merging them with those of the sender.”

...read more at atlas21.com