Julian Lloyd Webber/Pam Chowhan/Catrin Finch/Steafan Hannigan
{"copyright_id":"0x3e7ab37c2bb0ae15126ac977cfe181bea6edceccce46d9f3bfba712d33ba4cc9","name":"Julian Lloyd Webber/Pam Chowhan/Catrin Finch/Steafan Hannigan","registered_at":"2026-06-15T06:39:55Z","symbol":"NIM0713488","token_address":"0xf743fa906b0e46cf2e04d1081ba5ed1bf898b819","type":"artist","uuid":"f90b1bb9-041a-42b3-962b-ce5487606114"}
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 0x3e7ab37c2bb0ae15126ac977cfe181bea6edceccce46d9f3bfba712d33ba4cc9. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f90b1bb9-041a-42b3-962b-ce5487606114.json and https://artists.proofprofile.net/proofs/artist/f90b1bb9-041a-42b3-962b-ce5487606114.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 0x2711e382f4f6718e0044b91db3f7c0df48750e17b3d9fa37bb4e025c5fcc8749. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAYC0502360.