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 0xc8d1084f1cf31835bde34985e1d0a81fe76a5493f1f3fa3d627f98731ae325c8. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8650764-b705-43ac-bc5f-10d1f12d7c84.json and https://artists.proofprofile.net/proofs/artist/e8650764-b705-43ac-bc5f-10d1f12d7c84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les plus grandes comédies musicales, Vol. 1
Les plus grandes comédies musicales, Vol. 3
Les rois du monde (Thème de "Roméo et Juliette, de la haine à l'amour" - La comédie musicale)
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 0xb26eb2d02cb1afced8675b33bee8782ee5767b3d7c68a18ad99773a146f5108e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FR0W61318827.
Les plus grandes comédies musicales, Vol. 2
Etre à la hauteur (Thème de "Le Roi Soleil" - La comédie musicale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b6e378a880c90bcf4fe62781e0a3e7d0f5a16c8d45e7544725f0b0aadadd89. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/FR0W61328420.
Aimer (Thème de "Roméo et Juliette, de la haine à l'amour" - La comédie musicale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa368fa0f9c97d6609db8f7acad4074f1751169afefa0d43c50a370fe552618. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR0W61318855.
L'envie d'aimer (Thème de "Les 10 commandements" - La comédie musicale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fb59d00fb94a124de91785648b8cfc83ad86e665d31fbaa196357657260c6b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:53Z), 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/FR0W61328422.
La peine maximum (Thème de "Les 10 commandements" - La comédie musicale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad788ee7f3fee9c67b5533df21fafd9b7e1509af5cad69c84f221e12cf75d6a0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR0W61328423.
Les plus grandes comédies musicales, Vol. 4