{"copyright_id":"0xec0ad6a95709b913ccbe8755ff99d15b90895a5bdef10ade2be1c81ed1c62ae2","name":"Lucho Macedo Y Su Sonora","registered_at":"2026-06-12T04:17:14Z","symbol":"NIM0184337","token_address":"0xd2cb7363a652e8238f37c59bfbddd9cbbeb37a8b","type":"artist","uuid":"8f5f5e0c-ed6f-456a-b1cf-89b28e5d90a6"}
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 0xec0ad6a95709b913ccbe8755ff99d15b90895a5bdef10ade2be1c81ed1c62ae2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f5f5e0c-ed6f-456a-b1cf-89b28e5d90a6.json and https://artists.proofprofile.net/proofs/artist/8f5f5e0c-ed6f-456a-b1cf-89b28e5d90a6.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 0x27c1d07e32de0b2061c6b127282f9b70ca539a3b69e23a0adc6b57070edd584e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/US6R21371203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62d2fcce4b281998a4aa2b91adb51b826ddc9354d89efba232c7f1f963aaca6. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/US6R21371208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ad59014a2d06523b9ba1c3c0300cff264352e687050ab2ea650bb9df54b743. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US6R21371257.
Los Grandes Éxitos de Lucho Macedo y Su Sonora
Hemano..Dame la Mano | Canto de Fe Esperanza y Fraternidad 1882-1982