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 0x2cc6987d79b4b7e1c30597330ca797219977360ffb09dd89e23d9f6a946ae07c. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/049b9dea-6359-4047-9486-3b12a8d3e30a.json and https://artists.proofprofile.net/proofs/artist/049b9dea-6359-4047-9486-3b12a8d3e30a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x11f16b064d95e30f48b16fdc4db94d5ff87d20207aca43510aaf1179b9e25972. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/ESA011408527.
La Cruz de los Valientes (Grañón) [Live]
Radios y locutores (Pero que contento estoy)
Soria, la gloria de España (Versión live)
La Cruz de los Valientes (Grañón) country
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0064561928d594c2254cd5b87fc8b06e100725720d0c3e34388085c7e6ee6369. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ESA011300670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf44af6e7241a4e8e89cb667abf2b35111d98055e7b1ac0fd0d6616ef10c3ce7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ESA011300640.
Have You Ever Seen the Rain? (Gracias al Sol)
Hacia Moscú Va la Selección (Versión Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d43457eac0d446caebf98f68c53a8bcee72bdac552ba15457f5af8828c00140. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ESA011410554.
Día de difuntos 25 canciones para celebrar la vida
Himno al Berceo Club de Fútbol (Versión Especial)
Nadie es profeta en su tierra Logroño (La Rioja)
El chulo de Viguera Vecharia y Vicaria (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e3c4389a70dfb4892175c4b95b42238ab8bb9278d93634dae28fca0c75bfd8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:10:35Z), 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/ESA092320401.
El gnomo del balón Messi la leyenda (Remasterizado)
Cuentan los viejos entre rezos y cuentos
Las verbenas no son reales desaparecerán