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 0xe0bf1b9420a09b005d51175bf4c2f5f5f2359bd0ae423cebaddb89ef3099be89. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dad9d99-a0ad-48ae-b897-9632ab96c7a2.json and https://artists.proofprofile.net/proofs/artist/4dad9d99-a0ad-48ae-b897-9632ab96c7a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jeanne La Romantique (Conte musical de Saint-Preux)
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 0x6ee5e69097dd9dfbb5594aa1588d839bd0f5527c934fdcd498f5d724812ab115. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/LU5M10600310.
On a tous besoin d'amour - En duo avec Johnny
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95319770690884b084fec6304eb7e460848a685bd266000b7bf7cd9cc2f4742e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR5M10100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f5bb000451538d84f3e721530f2905d18eca718153f5aa40daa0ddd52a7164. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/LU5M10600320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc727b0c76c0fb852867dd9d70061f090c24ef44deebd112a77fbc75755375924. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/LU5M10500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288ee0a4094cba32b3de5ea59e1a9423626305b49879506cd5a297129349548e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/LU5M10600330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406d3fcbec2aa349585b39cccff16cf1621cde9c2fe20289225493cdedd33691. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/LU5M10600350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ede375e7288aa8d3e08c4cd6bf1d8ca94ea18bc11ec51fb113ee3b5b46eff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/LU5M10500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed5c7888571c15a6d03891d8f904b25a447248b8efa52482cd7286a240af6da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/LU5M10600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18797ede24ba1e29606cf2ce3d8da6032657fab65b86975d672a9ef0b2ce4f8. 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/LU5M10600390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4be3db2e000961cf4f54acf58c79bdc1067ce18e2f2f530426c3d0cf9376f2. 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/LU5M10600410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433a192419721e0f943373dd6a6811e2ee74671e2e03797570021cf343db6ea5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/LU5M10600430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c86d5a0780c4f4d50d7710f54e56d5c5d5f51fdbac696d4e9cece6a8704a21. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/LU5M10600460.
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
The Music Package Collection: Romance, Vol. 1
L'Odyssée de la vie (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ad0bd0543e8a584249015103d4b6b568861a4d349934059a04034d7fd2489c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR32V0900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932d3421c73ab63acb16388ad63bef4844e9c00c05c3f955fbfcfbbac618eb1a. 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/FR26F0305380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5744751b55be6fd4cc6edb32ea630c791b8833ba34052228ba89fed0142a2b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR26F0305560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b28cbc71c932a036f0d45d7b6163102405660dccf2cd606b691e011dfd475d. 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/FR26F0304200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42d5075f7d806ebfbd0f91466ce9f2ab679aed6ac04ff8965b8c93d910ab1fb. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR26F0304440.
Sans famille & Madame de... (Bandes originales des téléfilms de Jean Daniel Verhaeghe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5148bfbf69789dbd24261c4ead1154a49b84c78b216bbfdf4617ef084e5d27. 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/CAC900210401.
Thème de Rémi - Générique fin - From "Sans Famille"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa251ba1cdf9e101cdd7afc965958eb5e374f1a0f3a82be9e48ee476102585bea. 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/CAC900210413.
The Music Package Collection: Delacroix the Orientalist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3b4d7e24325a8aebc37e4c058e707ef302e56367a436caed7f1ff4964d9ac9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V81243683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c844f7f9120ac292131d7ebf9ad80ca85369c9bee46b5525bb60e1f279be28. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR00V0400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd946c0610bc83eb8bef686f4f1eba760a500decbc660eb7246c9adbbb092ba3c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR26F0705620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540db598dd75e2e2048450175bf28e532a36d99b879b717cb776bb54461e342d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR26F0705670.
A Century Of History & Politics 1973/2001- Retrospective
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2573b1d2dc32371611296c9f70e90b4c2e145a905ab68359cd49d9228d4de80. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR26F0504150.
A Century of History & Politics 1930/1945 - Retrospective
A Century of History & Politics 1900/1930 - Retrospective
A Century Of History & Politics 1945/1973- Retrospective
The Music Package Collection: Great Outdoors, Vol. 1