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 0x3e5e92367424766011c3de6ac3d8f64d277ffc2d59c5e92cd6eb764543510700. 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/af6d8959-2d2d-40c8-80a9-324e7b7dfb24.json and https://artists.proofprofile.net/proofs/artist/af6d8959-2d2d-40c8-80a9-324e7b7dfb24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nuestra América Negra - Música Y Cantos Afrolatinoamericanos
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 0xb714dde4ca14bc5d09bf74d59ba623dd411462bd39b8dbc56f4f92b4aff428f8. 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/MXF600600243.
Danzas de Concheros (Danzas de Conquista) [México]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28b639c39353c13272356e41e07ed54bbd9277927297c45bb1f61d623ce1a99. 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/MXF600600253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d87b042eb5a532d94e0a8611368891288289003443ce7c53b60577adae6eb9. 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/MXF600600384.
Konex-Konex (Canción de Arrullo Maya) [Yucatán]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c83b5f8175da94def030023d83aa4ec4dbbbe1dc519beb04edf53cf7e316099. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/MXF600600482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6f3f3e96d7d0f52287f573363d5cf85858586f5a103a89a9ae4c3265bc9c2. 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/MXF600600490.
Danza del Sol (Danza de Concheros) [México]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a608c88e38f533db7e77af70e796c9f667ad28d4f8f279102c1d2fa130d667. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/MXF600600913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bf3187073c22298585a974b46104f65549877bb9b13636ea77cafef2bfc472. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:00:44Z), 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/MXF600601313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83295c2d8eb028d5c0ed06473cd19fd14de031ba606dd26a4e409d75eed069be. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/MXF600800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c0ffee8427b7b74875557dfc0ed098a5933707ec91e7133fbee19bc62acd37. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/MXF600900862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21094045c9a3698441d9fc61909635147a3e29e21295999ac475d0e6aadb46d5. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/MXF600900863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5343790f767ed9cde4a2d5f28cd966786b37c30ff2d8d467b3c7cc37f5805bb0. 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/MXF600900865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ed6effdc508b46f1005deb9e9a5c0a6e1ec9db915a77bb479366953709e503. 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/MXF600900866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f46edfe4e7704b89182766c882af3e2b5fdc60b8f52761bdd8385b9ffb4e514. 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/MXF600900845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ff246641513f3d54a83b24c01f9c4db9eba246e3ab6ff8b566180b552383f2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:03:17Z), 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/MXF600900854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633ac5f4d352296ab8840dc3a784d115032d792bd4858e7645bce467c1dfe3b5. 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/MXF600900857.
Viva Jujuy (Bailecito) [Argentina] - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd301354c691c1024d4bafead1549d657b4d47a60c8393cd37b04181348ddd748. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXF601100817.
El Pescador (Cumbia) [Colombia] - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05f53326d70b59696cd20e6ef6b4f422a2b7defd0507c1a52bd20ed9c89ddfd. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:49:17Z), 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/MXF601100826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0397365bb9560e29e36bd4c018873d520643bafe7295e631c61feb22f09d42fa. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/MXF601100830.
Sobre una Tumba a una Rumba (Clave-Son) [Cuba]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bf8dbdda6fbc6c85f1993df86396d94ceccb4eaa91c2c0fb3baf48c02baeeb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/MXF601400878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13c79e1ec531c547196ba0791af6c011417a2063e33c3925d4318b7bb7c0187. 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/MXF601400879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cb7d07d51afba473debd403270213336c5f2075725a1eab1fd2b904bf7e2a0. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:50:10Z), 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/MXF601400880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e637f40783360493ecd9dbccd1250507298bc6e91372203b4a77a0c0f73b9c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:10:12Z), 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/MXF601400881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec527ef4b641448f70a5441339fb4e4b3448001259e5203ee5173e5cc9a2e55f. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/MXF601500760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb74a0d8b5175870d00b5d085e5ad8969ddd08eafbe38950396ade20d3014ee. 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/MXF601600399.
Canto de la Mañana (Pasaje-Joropo) [Venezuela]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3819ea1518192be7d4c93a07ffa1b1c9a0c9b214fc984a9cf27f6e3a705193a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXF601600400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e05668e310b8580a76fef029b11d400a93417ec918639085d4c7d5c1392266. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:55Z), 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/MXF601600413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8d163942ab36f5b343830b4c3ae0570dd1e3bfa872205500af88dce710594c. 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/MXF601600403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0292d34a65104a3b795b471150f5c8890b3a18234448702f330461b2b8d1bf7d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:03:02Z), 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/MXF601600405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1025bcc9f431224c2120bf2074d2de14fff76d2d1dd77609e4a8a9b1fb301e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:51:55Z), 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/MXF601600421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794c332763297b45af6245251ca5b054112ad13a34455b6f8c8c941f1d03c52a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:54:51Z), 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/MXF601600410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc0c428c22ca9546f6623fda25cee314bd9ac5a94e7c94fa1ba76bfe9321a7. 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/MXF601900405.
Captain Planet Presents: Through the Wire (Remixes 2012-2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636af122a0f40757880e25ea4a63af73addbb8d7013b8f07dd92430220811d80. 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/USGC61500484.