{"copyright_id":"0xa0bff6094bdc75e0e7fccd45ec834df10dc9a0cbd133bf3bc5f66aeaff5cbdf3","name":"Pegasus Chamber Choir","registered_at":"2026-06-21T09:01:44Z","symbol":"NIM1883011","token_address":"0xd6c3ad1fddbc11ff1ef1cf9f3f9a6f7c21b484b7","type":"artist","uuid":"e7071b6a-68c0-4a98-8e9f-3481176881a6"}
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 0xa0bff6094bdc75e0e7fccd45ec834df10dc9a0cbd133bf3bc5f66aeaff5cbdf3. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7071b6a-68c0-4a98-8e9f-3481176881a6.json and https://artists.proofprofile.net/proofs/artist/e7071b6a-68c0-4a98-8e9f-3481176881a6.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 0xf1feed6720396e66921ef4d5a3638f7074b4dc8be4d797b656065253ff0c72ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKGFN1900207.
Vesperae Solennes de confessore K. 339: V. Laudate Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ba5c7d1577e80917277eb59b31491cc60c256045af01ccbd4e8d3c853a27d6. 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/UKGFN1900213.
8 Part-Songs, Op. 119: III. The Blue Bird
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15726fddc11343de61ece148da8afa6da2fac0f4f8d860eab33d18181c0e1ecf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKGFN1900217.