Hi Product Hunt! I’m Nnaa, founder of Truthlocks. When an AI agent takes an action or someone shares an important document how can another person check who signed the record and whether it has changed? That’s what we’re building Truthlocks to help with: - Agent identity: connect software agents to identifiable issuers. - Signed action receipts: create records of reported actions that can be checked for changes. - Document verification: help recipients check a record’s signature and integrity. - Developer integrations: bring these checks into your applications through APIs, SDKs and tools. Start by trying to break a receipt. Our public example runs locally without an account or API key. Verify its signature, change the recorded action, and watch verification fail: https://github.com/truthlocks/ma... A valid signature proves something specific— it doesn’t prove an action actually happened or that an agent had permission. We explain those boundaries because trust tools should make their guarantees clear. If the example fits your needs, explore the hosted sandbox at https://truthlocks.com. We’re looking for developers willing to try an integration and tell us where they get stuck. What would you want to verify first: an AI agent’s action, a business document, or a digital credential? I’d love to hear your use case and what would make Truthlocks useful in your workflow.

Truthlocks

Verifiable AI agent identities and signed action receipts

Verifiable AI agent identities and signed action receipts