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 0x7aaa14de5080823f87eb798f379fe635e95c7d72067908017e43fa14f23cb688. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07e8ee1d-6da4-424b-bd5e-70977eeeda3f.json and https://artists.proofprofile.net/proofs/artist/07e8ee1d-6da4-424b-bd5e-70977eeeda3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Nostra Cançó (del disc de La Marató de TV3 2010)
La Nostra Cançó (del Disc de la Marató de TV3 2010)
Quadern de Viatge - Centenari José Luis Ortega Monasterio
El Meu Avui / Balada D'en Lucas / el Canó de Palamós
La Nostra Cançó - Del Disc de la Marató de TV3 2010
Ara És L'Hora - Himnes Dels Països Catalans
L'home de la Guitarra. Tribut a Josep Bastons