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 0xecbf0aa3557f91b35eef869e357ff2ac26f5d4198b503914f278d050fd4c342e. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5182b6e-f562-487c-8e7b-56d7042553c0.json and https://artists.proofprofile.net/proofs/artist/c5182b6e-f562-487c-8e7b-56d7042553c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Desperate Housewives (Générique de la série TV / Main theme)
Desperate Housewives - Générique de la série TV / Main theme
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 0xb5d5966b97b01a92076af0e9cb533ffd4ba5b7e7937a062c8b70e601bfb36a00. 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/FRX080600499.
Génériques séries TV (Best-of 50 titres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d6a8b38ef7a47b4c2141f35b93087ef2356c4afd5601eeac1108584315ad8e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX080600540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d5966b97b01a92076af0e9cb533ffd4ba5b7e7937a062c8b70e601bfb36a00. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX080600499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe0cc62248cdabcd9a6c1a7bb8974c85499f149cfddf6cc85a8651f30ef7ae7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX080600546.
Séries TV, L'intégrale (Bandes originales de séries télévisées)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3441f264f7f6b6d8b8d5b9527869e8c89215f2fdec53eac674a0e49d91f118e4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX080600498.
Anniversary Collection (by Stéphane Pompougnac, Charles Schillings & Ravin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffe5dfbdaf8442d562016f7310afd9594b9209c4d4b4d073af9c49ba9a49e82. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2175767.
L'intégrale des Gendarmes (Bande originale des films)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e4ba5ca41a324f146c6f6e810063c577d65f21bfc022af9ac8e6137403ff66. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX089950004.
Les Meilleurs Génériques De L'histoire De La Télé, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405537755756605646e9a774a0b01153714f9a06278e00dc76255fdf72bd3809. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX080600535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f6c08790e94e4d93e65ae86558c542690255486628d4765c7a7ba08cd29b1e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX080600496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ace03c6f78486e0931c8db8aa61ed15c1d91feb3d2c9346d07eba2c1d006cf. 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/FRX089920259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc67dd2b90660c31d2fa51d9bc86e6f62307768fd08fedfdea5a49a2ac4a8f1c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRX080600502.