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 0xe79ba9e0af0be86a31404fcab2ae64a4533f5852f3e504d306a1ed8ed017695e. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a9af077-4c64-4670-8776-07e16926f4d7.json and https://artists.proofprofile.net/proofs/artist/8a9af077-4c64-4670-8776-07e16926f4d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Flamenco Cante Nº45 - EPs Collectors
Grandes del Cante Flamenco: Canalejas de Puerto Real
Catedra Del Cante Vol. 1: Canalejas De Puerto Real
The Best Collection - History of Flamenco. Vol 1
Grandes Clásicos del Cante Flamenco, Vol. 21: Ases de la Opera Flamenca
La Baña el Sol Cuando Sale (with Manolo de Huelva)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da2ff15dd6dcf06b601abf204aa3af4b11f1aa4451ebcfed85361d2e4d95ab5. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:31:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5270002501.
Si Porque Te Quiero Mucho (with Manolo de Badajoz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c478c7065ed6536d267013db191efd8a9ae19fd63838373bbb11a669fac959. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:40:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5270002503.
Estás Pagando Lo Que Debes (with Manolo de Badajoz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d0b44f026b76417d2aa2fe1e9530676584825bbda4d4a67c7bd37d4e8c2031. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:38:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5270002504.
En Cai Voy a Mercarte (with Niño Ricardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e692e64a07be84cff590f0ac3ffa42c9ab9966d6be9cba65c2e926315e5f9d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5270601209.
50 Años de Flamenco, Vol. 4 : 1940-1990 (1a. Epoca)
Grands Cantaores du Flamenco Vol. 23: Canalejas de Puerto Real
Canalejas de Puerto Real, La Época Dorada del Flamenco
El Cante Flamenco de Canalejas de Puerto Real