Async Payjoin is the best hope for strong privacy in Bitcoin. Modeled after HTTPS, which enabled secure payments for the web, the Payjoin foundation has been quietly building up this privacy toolkit, which must be adopted by a large number of Bitcoin wallets, to deliver privacy at scale. 

Modeled after the Bitcoin and Lightning dev kits — which have become quite popular among wallet developers — and built with the same cryptographic primitives already in Bitcoin core, such that it can be easily integrated into the main Bitcoin implementation, Async Payjoin is designed from the bottom up for mass adoption. 

Following in the footsteps of Let’s Encrypt, which in the 2010s…

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