1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bd77b86b2bb20c4f4efb8ca9e679eff788ca994a591030fe6315abed65eb35. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5c0eb23-541b-44f8-b51f-10130b70d952.json and https://artists.proofprofile.net/proofs/artist/d5c0eb23-541b-44f8-b51f-10130b70d952.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aucun mec ne ressemble à Brad Pitt dans la Drôme
Du vélo à Saint-Malo, du kayak à Saint-Briac
Fantôme de Broglie, Fantôme de Strasbourg