{"copyright_id":"0x3370fdee4b02a7c9a6cfcf561ca29ed3870e3776c7869368ee1e94d498d5f7a3","name":"Gilbert Vincent","registered_at":"2026-06-14T22:20:06Z","symbol":"NIM0594130","token_address":"0x6f6bbeba8778bbaaadabb5f3f209eeceb5cdfb7c","type":"artist","uuid":"a8bf1cf7-95d7-4ba2-81ff-d31650adc9ad"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3370fdee4b02a7c9a6cfcf561ca29ed3870e3776c7869368ee1e94d498d5f7a3. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8bf1cf7-95d7-4ba2-81ff-d31650adc9ad.json and https://artists.proofprofile.net/proofs/artist/a8bf1cf7-95d7-4ba2-81ff-d31650adc9ad.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7377c640e001db29110fa9683d1752519566a52fac29111a5bdd3ef51b3f76e8. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZS632556718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259d4ef7a068c219fb8b07a366da7820970d5b44e38b11e35a9b54fdba2ac3fd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZS632513584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947b28f74bae3ea2416b30edaa145ad50f958d439b490441d0c3a252982851d7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QM42K2584515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c7909fe92875ba8a6bd972e3676a7d49fba8e53d49dc1074f84ebf0f76594e. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZS632508752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962ed67fc01015180951f51d6f1695028e735b3efdce3cbbd29184c486588a92. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QM42K2526203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7c918ccdbb4730ceb23e635dfd995ce0e873d539dcb97f9153a8ae55dd0cbf. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZS632505646.