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 a 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.