{"copyright_id":"0xca31afc2d60755b10fee1ffc4e26d813dd15156dcecc90cdf20aaee33b460eea","name":"Robin & Linda Williams","registered_at":"2026-06-21T15:34:26Z","symbol":"NIM1960501","token_address":"0xbed9932a4eaf8777ac9cf5509524771d6c8d824f","type":"artist","uuid":"f6bcacbe-9b39-4da0-9c78-18cab67c03bb"}
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 0xca31afc2d60755b10fee1ffc4e26d813dd15156dcecc90cdf20aaee33b460eea. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6bcacbe-9b39-4da0-9c78-18cab67c03bb.json and https://artists.proofprofile.net/proofs/artist/f6bcacbe-9b39-4da0-9c78-18cab67c03bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Close As We Can Get / Nine 'Til Midnight
In the Jailhouse Now : Prison Songs & Murder Ballads
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 0x85a301316b0602aee37c15cde9df108bffaf59a32304ecc7d50addb0a7faa053. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USEWC0775131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdab67455049b457a44b623a05eb26cb09f3f058d31d6db7ce03a555c6aa7132. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:15:19Z), 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/USEWC0775290.