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 0xc3c7de8aab81d53c949929bd079d67ec72765dfe6e50287291db00dc28104f58. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5365f5d-766d-40f6-bfcf-01dc3d76ffe0.json and https://artists.proofprofile.net/proofs/artist/c5365f5d-766d-40f6-bfcf-01dc3d76ffe0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Bajadere, Act I: Act I: No. 1. Introduction: Reizend war der erste Akt (Féfé, Armand, Chorus)
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 0xcd48bcb088b656acdc9265661262c715ca5f7b968e948e8d4e7f7993d01d8a3d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB201498201.
Die Bajadere, Act I: Act I: No. 2. Musikalischer Auftritt - Melodram: Merci bien (Odette, Radjami, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5533b9b6d731b23d6a56c14c2b486b901df87de5cef4e7239406f361d259f448. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEB201498203.
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
Die Bajadere, Act I: Act I: No. 3. Ensemble und Lied: Dein will auf ewig ich sein (Odette, Radjami, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb29db4f0428004f553d033f3373bc1b9cdec41b2f344d37c406e3f30cc6c21. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEB201498204.
Die Bajadere, Act I: Act I: No. 4. Ensemble und Entree Odette: Reizend war der zweite Akt (Odette, Pimprinette, Direktor, Dr. Cohen, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ba206e586b99cf232c5fd3d0b6c50755543e0b344ce12e21acdb9b872598e3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEB201498205.