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 0xf459bc319ec94a7f591bafc995b3b2e3405f3603540453ff000f0a0d587ba605. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/771d0da7-ec94-423c-87bf-8f987e8853a6.json and https://artists.proofprofile.net/proofs/artist/771d0da7-ec94-423c-87bf-8f987e8853a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Jungle (Bande Originale Du Film De Matthieu Delaporte)
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 0x01592ce2e654163581b199d847a423aca9e6d1abf8e758af9a26f4e9c18f8c26. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRZ661204040.
Un illustre inconnu (Bande originale du film)
Sahara (Pierre Coré's Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac429ffe5db73b553b44fc952d5c768e3dbb00323d4b101eeff8e43eaef2302. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:11:17Z), 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/FR9W11622913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f3f79372448b5f24b741bbc2748b5bc878325ede0c33969a235cd2c485fb62. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9W11622915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fd81971fab460c1536261bdedf8a576cb20a31824b5e264f4860bee4b20f57. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR9W11622919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cbce68b83e40b49d3cf987d89d143d7f5b9b2feb02493cf847b3da09c05144. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR9W11622923.
Papa ou maman (Bande originale de la série)
Le meilleur reste à venir (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f1333361498088cbb82d41ad2163ceee9b4881273a4856bf4d32ea7368d6e6. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FRZ661904110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d841d85b1dacae1dc2d5c0b1056eaa7f6f461f48a06aadb217fcc513216c06. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRZ661904130.
L'aventure des Marguerite (Bande originale du film)
À propos de Joan (Bande originale du film)
Monsieur Le Maire (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365b02a68fe722450d7abe8de42c49320b91227bfb755c00dbd9ebd0b3f0f963. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:44:04Z), 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/FR9W12354601.
The Last Town, Une ville contre la Silicon Valley
Le Comte de Monte Cristo (Bande originale du film)
The Count of Monte Cristo (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f043ccea3e5b52011b82b171203d9ccbf9bd8757a12a759b3993fe9987c93. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:45:51Z), 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/FRZ662403010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e71e28ef645fdd6652ae56c860da6c0efa73e3c70574961804c7d7b17f4e972. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRZ662403050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204b2158dfa0df26c099a041deba78b98b1cac9e89b2ad62b8cc720c86d3e010. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRZ662403070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cae1a4063d7c419f02daf533b3c5b96fb4dce5416ccacce58c5ec303786e01b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:52:34Z), 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/FRZ662403080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd3daf139761bb4e11d3a5b9805c6e7a101ac1da65b0e30a4746ca3290bd1ad. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/FRZ662403090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4804062f246abb85dd6fc1756f199f8a4e9e2045c0dde7fb093aa0d635fd07ab. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRZ662403100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964ee6f70b1550ec7121628f9e5a937fe675f4ea48d1e56589206f17e1885474. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/FRZ662403110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8123cc385f49a285dca4440daed428c2f93d9279aaa501aae47d1cbe7576f492. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRZ662403120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7404e5e5131c0a060d75862a3430f76590c82f1fbf9e006e986c3deeaf6e3750. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRZ662403130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf95b05e68c5f01e5b65c54e9ba91f931891c4568ae64b28e230f51fff627ee. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRZ662403140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba617f7c312fca165f9990b33b3e5b68b61df93174e74a2941c31bed582a3e3. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/FRZ662403150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759cbf37ad9a334cdbd83970e559eac8da078f97cce56ef30051425f26c195cd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRZ662403170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda746c73ec551626de93e9ee35d5215adc37b2fbdc6c9e0afdcb6c529e868e93. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FRZ662403180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5814c4c13b8e0b2f40a9f2a8ec6f42298edeae1394051f0b0673743d160e91ac. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRZ662403450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b62cabb141651e6e7a7b0c5506b88c82a4a026ddff4ebb35799e26d7ed70bda. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRZ662403200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa9e52da4c8360995a4017005355555bf3380664d802c178a5c0a4cc1a2cb18. 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/FRZ662403210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b4b240f0d4dab9a558cd3db3bca5f85d519a7beb55445787e92c5de08ff058. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FRZ662403230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30a9d4d620088549ecdd76050d23645b64a7d665746f2b42729629bf9a53c98. 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/FRZ662403260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3719200c474adad70caebc56e59ba4b1ca83b2d341bf7c61c5a7a0b421d6ff. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:42:29Z), 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/FRZ662403360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4259ef48cdde421c03b640339e2435f071093c72ce5e91aaf2cfa3a9ed95e3ed. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRZ662403380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1907444e313cc392a04745e4a88307caadb4452610d7f52cadced30d04bfae3d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRZ662403390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4776fb078cabdc4b4b43c7d2efe6fbee7c3359679386e165c392f532d50f4b0c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FRZ662403420.