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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b9d568fec1670a14df5124518211d18b8a0c9caf802048b67315beb38fe396. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8f61bb6-8429-4726-8448-76cb76a9b442.json and https://artists.proofprofile.net/proofs/artist/d8f61bb6-8429-4726-8448-76cb76a9b442.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un Conte de Noël (Original Motion Picture Soundtrack)
Intrusions (Original Motion Picture Soundtrack)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827f39796fc740e1087ae99374f9bd9ca83d1f85abdc26f5767b20e816ebf836. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEB511000179.
Trois mondes (La bande originale du film)
Maman (Bande originale du film d'Alexandra Leclère)
Une autre vie (Bande originale du film de Emmanuel Mouret)
La chambre bleue (Bande originale du film)
La prochaine fois je viserai le cœur (Bande originale du film)
La belle saison (Bande originale du film de Catherine Corsini)
La belle saison (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634ca6692fc1d73a4d5bd82adb2a7a12d6c34b847eaa95c0b12516e09a794c93. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/FR8E71502730.
Trois souvenirs de ma jeunesse (bande originale)
Trois souvenirs de ma jeunesse (Bande originale du film)
L'ami, François d'Assise et ses frères (Bande originale du film)
L'ami, François d'Assise et ses frères (bande originale)
L'ami, François d'Assise et ses frères (Original Motion Picture Soundtrack)
Le secret de la chambre noire (bande originale)
Le secret de la chambre noire (Original Motion Picture Soundtrack)
Sage femme (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6757685df76e72abda09efdec0740adfaafcee563fd63ee63c00710e932baadc. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR8E71702520.
Les fantômes d'Ismaël (Bande originale du film)
Dopo la guerra (Original Motion Picture Soundtrack)
L'Amour est une fête (Original Motion Picture Soundtrack)
L'amour est une fête (Bande originale du film)
Un amour impossible (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9222ff8c05c2d8a77f3b7a297492906aeb8d742483177f1ef0d2934ad63c002a. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FR8E71804570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bc4bd7ef62d6917b04172b4a7b51d5cfd6bc93703a5b613e494eed7a03c935. 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/FR8E71804580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bba93e0a6ed463aedf2c521eeb063f883afb46e7fb2e7530b15b2de4241e9b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/FR8E71804600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a611c6688390469d90c799a4e6cd7428ed5b91c744328cab79e4d089dcf6f25. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FR8E71804640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2976f715cfa77312081126455742c62c2edc51d46f9bf38f0d9dc2d92ab879. 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/FR8E71804680.
Holy Lands (Original Motion Picture Soundtrack)
Thanksgiving (Musique originale de la série)
Convoi exceptionnel (Bande original du film de Bertrand Blier)
Roubaix, une lumière (Bande originale du film)
La fille d'un grand amour (Bande originale du film)
La fille d'un grand amour (thème d'Anna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8b45f1f688ccca8f1315ce9969f6b72f66f87c848c402f8a16f4066ef008f0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR8E72400682.