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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e2461229d9322d03d05f82e5513c3470f02f3e09e6b76422254e3c51e8ef6b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fa606c2-e1a1-4c33-b029-732c12001084.json and https://artists.proofprofile.net/proofs/artist/1fa606c2-e1a1-4c33-b029-732c12001084.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chante, joue de la guitare (chanson des tziganes russes)
Deux guitares (Mélodie tzigane hongroise)
Toutes les cartes (chanson ancienne des Tziganes russes)
Deux guitares - Mélodie Tzigane-Hongroise
Toutes les cartes - Chanson ancienne des Tziganes Russes