Proof Slip

Proof Slip is the earliest attestation pattern in this stack: paste a transaction hash or signature, pick a network, and get a verifiable record of a claim a third party can check without trusting me. The live prototype reads Ethereum, Base, Polygon and Solana. Small on its own, but Statable and Qwibi inherited the same idea at two other resolutions: a claim, a window, a verifier who is not the author. Kept listed as connective tissue, and labelled honestly as a prototype.