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 0x2a151849f371a4a3c09ff5b8cdb2486d2f834ae7659af430e57431d08056b204. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9403ec89-21cf-4ff5-b5eb-fc4ea4a0426d.json and https://artists.proofprofile.net/proofs/artist/9403ec89-21cf-4ff5-b5eb-fc4ea4a0426d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3572f167dcf817c43ee68ade855097b775d4f289012932940fa4e48cd1033f6b. 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/QZ8BZ2410074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3376156185990d1ebca58788ecd7d1826f8859564a1a7b0eedee39472c269e60. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ8BZ2410096.
Trains - La Nouvelle Bataille du Rail (Original Motion Picture Soundtrack)
Complètement cramé ! (Bande Originale du Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719732ece5ce880722b17b410c6d9f6632bad03f5ca1ef048cbdcb728cabc3f1. 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/GBMEZ2354452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ee1b9c70bf861acebe0c54b253080d121c336797e0a3226d6bf5e3d4d08302. 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/GBMEZ2354459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5745d4783ab1780ca87f7846e14fcd215bbeb27ba0bc91514ccacced2aba864. 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/GBMEZ2354461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ca3296d609afb590219a37ca10bc40d3ddc8d25ad1fcc3134efadc601f43fc. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBMEZ2354451.
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 0x2d9acd2a7040b2a330e2774e6a829e26032e3b9d0378e8cbdaf628509d923444. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBMEZ2354453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe8744ea93ade55aa7feeba837353a22d169978d4bc6b8e6ee033150ee90320. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBMEZ2354464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ed7a392046622d7c9938de74de9a1235ddceb272beafae6aa56e898fd2c659. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBMEZ2354467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36e32e9b3ddb8095987de4aa64459c31cbb17957a37e75c99a861112b737729. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBMEZ2354472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dad216eb32b477b32e66997a84c35df76b08bb7c43e4fe14fd10cd93c8a91c1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBMEZ2354474.
La tête dans les étoiles (Bande originale du film)
Moochie - Qui a tué Jill Halliburton (Bande originale de la série TV)
Poutine le maitre du jeu (Bande originale du documentaire)
Erdogan le sultan qui défie l'Europe (Bande originale du documentaire)
La sorcière au cœur de pierre (Original Motion Picture Soundtrack)
La dernière vie de Simon (Bande originale du film)
Quand on crie au loup (Bande originale du film)
Une année polaire (Original Motion Picture Soundtrack)
Natacha (presque) hôtesse de l’air (Bande Originale du Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9329402e831557a67e8de4c360ebf64863139955b9ecde575142d3647f3cd5. 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/GBMEZ2557818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ff1734498d6f084c564308d7b7ddf6aed1d67282003a3ff9a9a3fbcef21a29. 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/GBMEZ2557821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ceb1fd3de068ecf9b37631e5f7b54934bfdb6c362efe0a09f99603732b31ffe. 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/GBMEZ2557824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fe4c07f38329cfdd189e29885c32c3a73eeb1ece07f75c5be6c24766bcb47a. 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/GBMEZ2557827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c1d856285f62584d412510bec65de86f8c1e1674618ad0b8d67a3db9e536b3. 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/GBMEZ2557828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d67d807bb7d03c422468882a291517bb3f7cbe671e59118668839362721648. 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/GBMEZ2557829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76193e399b4394793d2bab0536fe58c2a41aacf71b17f9a69f011ea3361c24dc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBMEZ2557830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9840ed735152c7a97845f22bd193f7cf1549c29758e7d2e2c0e2c973b0f9a0. 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/GBMEZ2557836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac37d442535c6cf683f1f3c6d14980c7f9b3a507e48ca46ab11e98c8e0722b7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBMEZ2557819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eadeff7474f59ae682a2e5d7f5d2782f44a0730c3f092ba2e997944dafd60cf. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/GBMEZ2557820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b578d44b493645c7df17c3e6e3905f2056a6c53cb9b6bf350579442572392c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBMEZ2557822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48e29f6a4d524225e2a02e81ef91f6ad4ca0cc26ba08a8b9211e3f5cdc5abe4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBMEZ2557823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe15c0de02a808e6b582fff692b5c493db6e60df51c534d118468fa9ed319432. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/GBMEZ2557825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc374a52d6911d32f8ada50a28def2d38330107885d2f8c39ea1707279fa4fba6. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBMEZ2557831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5733077928e7ae7419bd963a3a9e2c2eefe42989ecb1b11f9f71adfef4689306. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBMEZ2557832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b1e15d9f2530318d5428508fa015aa1ce9096b6c8051608cd6f00ee2d38ae0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBMEZ2557834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d4aa55df56695fc9cae7b05596f68dbfed35cb0231f5867ac1ae65db922cad. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBMEZ2557835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4831f9bc2607bcd4905e437ca2fa0b8623a8dd74856e6af64cccb853d2f9c022. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBMEZ2557841.
Chasse Gardée 2 (Bande originale du film)