thumb | right | alt=La Fanfarria del Capitán, band photo 2014. | La Fanfarria del Capitán, band photo 2014. La Fanfarria del Capitán is an Argentine band formed in 2004 by Victoria Cornejo, Jerónimo
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 0x618de4b54abf870762842f074f55d0bf67133efab3786c07e44078e537fae4be. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1259bb3-c3eb-4e59-9231-d577ac5fdac3.json and https://artists.proofprofile.net/proofs/artist/e1259bb3-c3eb-4e59-9231-d577ac5fdac3.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 0x01efa465641cbdab2004bf2cab2300380a29c2e67fba42f5f116fd7882326046. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARB9F1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2bbb93807c05a1f049baedc22f7189bb9d4ce544f960fa0a1deae6ed70933b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARB9F1500004.
La Flor y el Libro (Banda Sonora Original de la Serie de Tv la Casa de Papel / Money Heist)
La Flor y el Libro (Instrumental) (Banda Sonora de la Serie de Tv la Casa de Papel / Money Heist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde919da8f11a492243e969cb4bb9571d3469877c977f56e340942bde410b1caa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ARB9F2000001.
No Soy un Extraño (Homenaje a Charly García en Su 70 Aniversario)