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 0xf3b14f7a778e20fdaae4e09bc018f4ef79ebaab8d40367051bea2ab9ba9e9e0d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7882f209-1a76-4b4a-a953-b37e54861378.json and https://artists.proofprofile.net/proofs/artist/7882f209-1a76-4b4a-a953-b37e54861378.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marinheiro Só / Mulher Rendeira (Acústico)
Marinheiro Só / Mulher Rendeira - Acústico
Vida de Gado (Admirável Gado Novo) [Reggae]
Vida de Gado (Admirável Gado Novo) - Reggae
Primavera - Você - Gostava Tanto de Você (reggae)
Primavera - Você - Gostava Tanto de Você - reggae