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 0x2962bf46cfd60bbf72d36226304d153c281e16f84c08fa5a945a0606b9a461db. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e219653-4df3-45fa-8301-d34bc223d233.json and https://artists.proofprofile.net/proofs/artist/2e219653-4df3-45fa-8301-d34bc223d233.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caïn (Saison 2) [Bande originale de la série]
Caïn (Saison 3) [Bande originale de la série]
Caïn (Saison 4) [Bande originale de la série]
Caïn (Saison 5) [Bande originale de la série]
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 0x031a63cd8e199d0b84d3fde240c77ee34396eac3321a3d29612bf34fc46146bd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W11711269.
Caïn (Saison 6) [Bande originale de la série]
Une mort sans importance (Bande originale du film)
Meurtres à Granville (Bande Originale du Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c90719687fafc9bbf188f410ad08a2f1f515b56e76d315781f56193583acb64. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR28E2100161.
Tropiques Criminels (Bande originale de la série)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c3def68f6d538ba83908eb641dcc9e4d594293d6925ccd74723f28a36b6777. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/FR28E2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2177a771f020f9ccafaf66037df4ed4d50e59ce7a3e085ead99471a29fb9bda. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:44:01Z), 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/FR28E2200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832c037f2a48074f9a3bb18cf6ec51c9127447198ae8b61166c74d4111868dfa. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:07:59Z), 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/FR00V2300091.
Commandant Saint-Barth (Bande originale du film)