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 0xc3ba30e9adb7824964e73a90fd9f85406eb50465233e1cde44b6cebbc08aa017. 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/60230113-8a33-4cd2-8be9-6dc6f6564e49.json and https://artists.proofprofile.net/proofs/artist/60230113-8a33-4cd2-8be9-6dc6f6564e49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'afrique De La Forêt: Rondes, Comptines Et Berceuses
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 0x288af846475c2752ea84cd140b5ccda13d94f650f31440f52653662c1c6fa437. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRX020400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a2d102f847f41974b47bab4efe497ebaab79c8e62f68887e9c53b7a73324c6. 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/FRX020400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4273556c2660d5578044a6091a15ff58ca968a068f7e2976c6270724bf672930. 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/FRX020400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3780b890b7b1cedec762d8510b510867f59247fdbb650e10538ccb2ee51d3272. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FRX020400206.
L'Afrique des Grands Lacs: Rondes, comptines et berceuses (Swahili, Lingala, Kikongo, Kimbunda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c2c17ac1e0fdebc80877bb41a9b157cf3a4864102d20942a5d6676dfba57e. 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/FRX021000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acd605eb3ebd85fd5ee32ecfcebe639653c614061ef5976426d9ddaa6a2e45b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:24:18Z), 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/FRX021000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d9ff595b613966716e31a77a9457ca5b40857ba67e8e78347506b571b4bc90. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRX021000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6bff9c21c85784bcb42c24b4d92f5c23eb516385309d06714bc1b063ce54f3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:56Z), 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/FRX021000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3cde2a7718cbdd7e5134f168f59609cc937f2145c93411767e8e220337748e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX021000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc03d3107e179b40e724e4a2ab8f4fc4c644677483aaaeb277b0c77ce9ac0061. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/FRX021000410.
Muana moké (Un enfant ne fume pas la pipe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d8f5b045fd56bce2f883a1b6820cc4b3d55355864697298269d87ae1fe8446. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX021000412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657b387720e2d6ac55a1709ae6616962260ad441d9bd440e60e51769a117d714. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:05:45Z), 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/FRX021000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c2fafd6c9a51738f075923799818b61759b7b4eadb2431c9fcba2a8a1c1e13. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/FRX021000414.
Mbila (Noix de coco) [Solo de percussions]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac176eef6b0a2745b5ad6301a6e2ff63b0a3b75fa66a1016d624f4cd02b07cb5. 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/FRX021000418.
Danse la forêt dense: Jeux dansés et rondes d'Afrique pour les petits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b952e57be29dafbfa3659679355de68d8fbf244c055cf6fcfa1d96a489b534. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX021300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb4d88df0b6fbe5135966241184528c66d8382d2d7b48bd0e30631075c5d2b2. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/FRX021300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8814399e0a74736c51d520f2dddbf85526cfc6f13e277021320f0ab344a034c. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:36:45Z), 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/FRX021300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5f7bf27691dfc42fc379ce8cd34500ac6f78e57d8d49df966dc52da909464c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:43:29Z), 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/FRX021300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3236370a601bf27608e4c78ab51e780b7a2e7a8703476e46cc461251313d1085. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX021300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b49ecf4b2a42704cca2a023e0cfdb66340522102c063a91874dfa68085eae78. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRX021400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872c88f088223d0b6aa01d79956bbfcbd2281dd0b5a66956e79f3cbcbc27e858. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/FRX021400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d3236de880c067831cf4ee9e390c20e9ccee31e988547f4b10b46bbefa5549. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX021400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f979a8e4005cbaa5272b8e939ed0cc8503d4d3920d65c2628b3a97ff138a48. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/FRX021400310.