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 0x34f5b6fc89bbbd45a4f0f687408d9f9e05f84fa9201821e2feb572718ab51799. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c829f568-2d56-4d72-a1b4-c3380bd909ae.json and https://artists.proofprofile.net/proofs/artist/c829f568-2d56-4d72-a1b4-c3380bd909ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le Zouk Love des plus belles chansons francaises (Vol. 2 - 100% Zouk Love)
Le Zouk Love des plus belles chansons francaises, Vol. 2
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 0x1287a5bd46f5013fb8ed7028c03e91a9f235e07113d62b8f414d0e1cbea6a8b4. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZ5FN2483025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4832877140f44bf4b6e0f06f46b823ecaa27f2b858bd1bd5a57f35809fbda5a4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDD2487314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73363d378e3877d406207f5d6c8efed000520fc45bc5cb8f6ceba58aa788ff7e. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZWDD2487352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cc83c7932a279665d492d5a767f7e5544387a06628ef66252f99739095069f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:05:50Z), 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/ARQIW2417945.