{"copyright_id":"0x6a0cbcfb62afa4ba8332ba36e2137b8cf76a8c6254afff5585ab2bb72965e24d","name":"Billy Pop - Musica per Bambini","registered_at":"2026-06-14T17:57:42Z","symbol":"NIM0531554","token_address":"0xc1dcfcc97b0f77435d825514caa2af6474c83f53","type":"artist","uuid":"7fca4cb5-a302-4d8d-a558-d7d2eefa6f7e"}
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 0x6a0cbcfb62afa4ba8332ba36e2137b8cf76a8c6254afff5585ab2bb72965e24d. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fca4cb5-a302-4d8d-a558-d7d2eefa6f7e.json and https://artists.proofprofile.net/proofs/artist/7fca4cb5-a302-4d8d-a558-d7d2eefa6f7e.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 0x4860fd22b825e7670318482df973345408a0b4c752573550e338b320160e2851. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/NL6VJ2452941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219a032a36094601ad3460ffbb4ad37a3ce9acfe35ee0645d1d3960ef236fa0c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/NL6VJ2452947.