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 0xe1480f7acbb84789ae77c7e94a421f08de6ffc1a5e17fb7b26cf85c62387d2c7. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2df60fe-dc26-4792-b49d-902e3bff0ad5.json and https://artists.proofprofile.net/proofs/artist/d2df60fe-dc26-4792-b49d-902e3bff0ad5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Parranda en las Mercedes, Pte. 1 (En Vivo)
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 0xe2d36e414ca3b15f0eb9098e28872966cc58e0de6939bdbaad9c3cd684aceb25. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:00Z), 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/QZGLS2443699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda450905fb2ca3999b680d804774521383c27bdcdcc26e9bf1da8e1e8523eb21. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:44:21Z), 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/QZGLS2443701.
Amanecer Llanero Con las Grandes Voces del Folklore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2d52ee58fd5bf5e0a9341d7ebe7a3bf49c893198193f5dec8ccef2fec3f9f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMHUY1554773.