Jason Dreyzehner (dɹaɪːznər) is a software developer focused on pro-freedom technologies: peer-to-peer messaging, money, and identity.

Jason is currently at Bitauth.com. His work includes Libauth, Chaingraph, Bitauth, Bitauth IDE, CashChannels, CashTokens, and several upgrades for Bitcoin Cash.

Jason previously led the design team at BitPay (2013 to 2019), where he also made open source contributions to the BitPay wallet, Bitcore, Insight, cordova-plugin-qrscanner, and bp-qr-code.

Beyond this blog, Jason occasionally posts on Bitcoin Cash Research, under bitjson on Reddit, and @bitjson on Twitter.