1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x38b763444a58a253cc22a96c23d01c58fe6b7d9e99719a3c6b95a0a42801bdf9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b7a3191-1f9e-4117-94f1-2cba7455b26c.json and https://artists.proofprofile.net/proofs/artist/6b7a3191-1f9e-4117-94f1-2cba7455b26c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aleluya / La, La, La (Remasterizado 2023)
¡Vaya Lanzamiento Que Nos Han Hecho! (Remasterizado 2023)
Hermanos Calatrava (1969) [Remasterizado 2023]
Hermanos Calatrava (1971) [Remasterizado 2023]
Hermanos Calatrava (1973) [Remasterizado 2023]
Hermanos Calatrava (1976) [Remasterizado 2023]