Hey Product Hunt — Ryan here, founder of Authproof. Built this over the last three weeks while working full time, going to school full time, and raising a three year old. The problem that would not leave me alone: when an AI agent does something it should not, the company running it can say anything. The agent was authorized. The user approved it. There is no proof either way. Authproof is the cryptographic record that existed before the first action. Not reconstructed from logs. Not the operator’s word. Math. The line that came out of a Reddit thread at midnight three weeks ago and has stuck with me since: Audit logs are post-hoc evidence. Receipts are pre-hoc constraints. Happy to answer any technical questions. Try the free tier at cloud.authproof.dev — no credit card, works in minutes.

Authproof

Cryptographic proof — before execution, not after

Cryptographic proof — before execution, not after