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 0x78be094b3366f7335dc94953bc70eef3ee286afdc49439196ce021fcbdae850a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f3672b5-7365-41df-99ee-0ac8d421be99.json and https://artists.proofprofile.net/proofs/artist/3f3672b5-7365-41df-99ee-0ac8d421be99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La vie secrète du jardin (Original Motion Picture Soundtrack)
Eva - A Crispr Story (Original Soundtrack)
Au-dessus des nuages (Bande originale du film)
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 0xc11a3506a38cd9243d3f13566460254c81c2b56944e0a45ef6cb3c09b75fa362. 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/FR7LT2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc644ba6253aca5e6ed2194b3c6d2df2453bc635604b3af4f97f6708a4f4cbb71. 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/FR7LT2100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13d46706691a160d1f003ff6bb47a193bb095a2d6c469070d55f866e02f9428. 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/FR7LT2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341280d832659d1e1ce940a492aed0faa04a6034f180503a7414fc126d49c190. 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/FR7LT2100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400036f8a96ad5afd8eff4e27a09c6b754fda397a30adf34f5b2453069d02d3. 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/FR7LT2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6a527011fb037fe2692308129ba720b9e8ea29124fc990192b30b9c81737d1. 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/FR7LT2100180.
Belle et Sébastien, Nouvelle Génération (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c9323dec277322fc66e5a83499ae676b61aa282157d2aeeba69c592ef424dc. 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/FR7LT2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd107f256cfef7e964c5a986d95d623a68e441d6ea1debe56752303deb7272bfb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR7LT2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b957ee851f29132bdaa75f5d025a80a442c4ce242665e907bd72ac94b7aa4f. 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/FR7LT2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb703007bcb8e4658e0917ec5652763273ff8da773ebf4389732fb779db31de4. 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/FR7LT2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80064abfff7ffa56cd3acc982e1a4db5483d146ab27209091ccc2b2e72992ce3. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/FR7LT2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79eedcdd7cac35c3aa5e8ede7360bdb94d84f7176e53c8b8b944a71a093bc390. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR7LT2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec38f6735726e03bd8906b73adbfe4936a0f99b5a940a494a37bf9b5ed5ac05b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FR7LT2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b07550c806159c22cf269266907d79e22d24983d3a7bdb753404294affa5c25. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR7LT2300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5e4f5287884c9e292c27861973f1cd3f0a4f7addfc74f68fc967bb2dc554ba. 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/FR7LT2300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e26b0fb4befcaa182e53c6124998a36effffb8a5e7fde3aea40d868e367681a. 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/DEM402400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f70430c836e4a99c180d6b1b1ca55601d20d0ad43e97c11059f51a9e450549. 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/DEM402400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5661edef4cf87b1621565d499359cc6dad50396db5e512f1ac557c3a20ad74. 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/DEM402400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87baaaa70e3c5b0f69c671d7eee89765874eeed626c2e3cdedbf9ed133f2b629. 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/DEM402400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950ccb9ca28b5f258b6bbd422463d7dfe09664298bde0fdcd54970c88f091d6b. 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/DEM402400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400036f8a96ad5afd8eff4e27a09c6b754fda397a30adf34f5b2453069d02d3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR7LT2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ede87ef11944624f2228a48dbcc197a3c82095e33167aeebd6a8fd1c66b07db. 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/FR6P12201710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304744b9d04a266a5510a20ecb2be316012d8442bd8b1fcd1ee9e3a01c6e2e57. 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/FR6P12201740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af91b04a980cd026388a24e73f8f74312ef8cded20071bcce31d4a2a68cfc39. 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/FR6P12201750.