Aittestly is a small library that lets any application produce a cryptographically signed, hash-chained record of what an AI agent did — what it proposed, which safety checks it passed or failed, whether a human approved it, and proof that none of that history was altered afterward.
AI agents can plan, browse, and act — but there's still no equivalent of a notary stamp for what they actually did. Aittestly aims to be that: not a payments protocol, not an identity network, just a focused way to prove after the fact that an AI-driven action happened exactly the way a product claims it did.
v0 is a .NET library, MIT licensed, currently being built and
proven inside a real product before it's published more broadly.