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 0x8df12c6d69b61cc7b404fe203ea6f823c0234aca9d06befc464035bbf0c9f227. 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/1b7d907f-3d1c-4a13-a061-d079c9f29b2c.json and https://artists.proofprofile.net/proofs/artist/1b7d907f-3d1c-4a13-a061-d079c9f29b2c.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 0xa901cafdb799b271756b4d7e23117067865e272c7e518e579ce91a41c86f3e3e. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USDNB0121803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34998733a56fd1aea8e39aa6e1c5c083a4328e2f7748a837096cb58875caefd5. 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/USDNB0121806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10edd3e7c702e115a46172dd4b90cb36cb81f37be3a5f1a72f24bce80dca314. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USDNB0121810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63231a50bca5c47fed141097f46517d17ba985a3d4b82065013f86238b26828. 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/USDNB0121811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1798a0a85674d47d58549cea9fc9549fe02a6ea9175bdf5407cbaa00ff6e1d54. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USDNB0121812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36403077a3e6e9da20762cddfc88b2f0922549fa07cbe783ebf303f3f7543fe. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USDNB0121814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7bc3cb18c8649da7173fd93458d203f5d5770a5ff4ade178994b780b82e1e0. 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/USDNB0121815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1b30b450f76819e1c89131576b6dd302f0b1e93de15310f839b8858845efb8. 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/USDNB0121816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8c78bf9565d0c02bc8abbb2e6d4cfb3c2cbd175a06b12b29bddf25d4f00a57. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USDNB0121818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235b2f3f8951cbb1c9ba29326f853915d5807e70347fd0b1b3c9259a9ba4c59a. 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/USDNB0121821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e61793098d62facfbc42b1f7d24e3855ff651f4175c340f01b7b167efa85124. 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/USASN1601737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf022ebdf9ba9a694132fca87f443099e1556ae9354ee1b24ee97cf78ec40ea7b. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USASN1601740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbad0d3f342590630c1190779ce2724278e8bcccf57c9b9354d9a51a0a91dd5. 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/USASN1601742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7feb20fe5921cdd538dc27250e90e7667458eadca0f612f461ee7aa4cf8a40a. 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/USDNB0321502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8effef24691a3778a46948cdeb769160c360ad26ea69c9125ce5e46937a5f88a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:26:39Z), 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/USDNB0321506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470999355e544fd3b8b17cc82292389692e1cb76560b50d5abb0fb61816b7f4a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USDNB0321519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b808e8bd532e50a5dd8ee8479a8d52bb2b1e068a93a7fa333b699daffcce84. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USASN1601751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ac2cde41d7a30142df8c037669987f80ef3dbd0fe9647e95ddf3b1bc82b463. 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/USASN1601752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520b6daf4da07e4e7b7c95beb0a5d1c2bfcf15b3c0f958dad2f5ad6807e7f012. 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/USASN1601753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a46e0a0b41d0a1f741effac3edd2d1447681526c97e67d027d357c7bb17ae2. 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/USASN1601754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee958fd58caeb48d55ab7983533890f2b30227ccb4aae614b8756797b9e332a. 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/USASN1601755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645c6aa09191dce733e4c3e2f15d391fbf6c0d6e7964bae6abd337a63267ee71. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USASN1601756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb6a8f3d1f7b3112c3900b035199ecb7933471c83587f69aa4c5ecb6c19f41f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USASN1601757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd1ceac11bd74698091abbd78fc31274159bddfe84c574815e711d24fcadb21. 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/USASN1601758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b77c7ee5a4f17aa64341133db2d12b97ce11da2ebf0a9be0712c17c5bd5a1a1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USASN1601759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43af545f821911e3ad6e057a73e43ec0c4713156bb2e8f5b2e1bec9dd6d9924f. 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/USASN1601760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8cfdc4504380c124610dbc3eb9b2f83e579b67507448f60c3a209dc1db2518. 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/USASN1601761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aacff7d75c47b7a6b05dc3f0e7229d03e0d3b05a3775ac74c3049b159a6d4a. 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/USASN1601762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228b8aed5effd638fcb1c60626402b9290a3259cf718663d0a36340101976eeb. 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/USASN1601763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3d739dcefbee58a98df9e48d8cfd91cea3edc4c934c2dfcb45f928fc4d3722. 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/USASN1601764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094545f195b08e000f80dc3b72ca32818b51aeda73264a56fd699a1d2e480a1b. 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/USASN1601765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6f6dab6affee0539fa6ef347662ac84b2f40cf2efbb6753747699bcf787fce. 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/USASN1601766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567306cf0e35720b039bc168befae3cd79159637e44cf169a97c8b6ba7b9276a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:00:08Z), 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/USDNB1123802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf441ea8abdc0842e323706cfda634c6458f371f5fdefa0b67c2fce0495a271. 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/USDNB1123807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e10643d2c07880f324f1e37a2f84e177bc65cbe07db7a02fa09a23386e74531. 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/USDNB0557801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa768e804ea81aac605273065acabd990a3857db2c4478e1e850f95cb92be03bf. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USDNB0557804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546937fc634434181f4415629cea61a46a15222308850c684bdae186d3f41de4. 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/USDNB0557806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631aeaea52bdf4ef3ba16dc35cf3505ddb1b77383db6a748f4389dd5a3de93bc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USDNB0557808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd4c0fba10a82dd9007a95fc8298015df91a13ea32fbd0ada2b15060750b98b. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:56:21Z), 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/USDNB0657904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda01b0a12113b82e80b99487cfd3396d7a4dbc1bd5f0a6e66a63ea653bbb1688. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USDNB0657905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cce0015e2fe03b55795aceec71cc697a00e4424d0648ad471f9bd8102e04a90. 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/USDNB0657906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bd0cfdd9eb28a50b8ad40e80034f1580c06393d16136388bbaca1fe82c7429. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USDNB0657907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83d63287ab5197c13982cbcbff94cf03b306e7edac1e5676f4687426971e3ca. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:52:00Z), 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/USDNB0657908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4175909c2e10cff6e687c8eaafe6163353f2b844a74075fad4c2dfde25ec61f0. 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/USDNB0657909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47aa4228c771e399ded3f086688bbfab68b565f17a09eede742bf6124bdef023. 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/USDNB0657914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5690c70fef32a878a4842773c738c051a3a545d333a8c186f9622d6fa4b8e19. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:17:53Z), 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/USDNB0660402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966eb354bda1443059fd541085f7c5b8472f3ee319b387f252b4bb7c74f202bc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDNB0659408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311429dc1206533808d782ea400de95ae5c2ab5dad8ba1d8333c103493f08987. 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/USDNB0958604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa180d202af1ac985e569ab713698ce0bf10195d301715217f52357560589110. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:26:29Z), 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/USDNB1022511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8d2c2cff3dd0d02f940bf4efed6044eab0f533d56e4fc631c608ec4dfa8448. 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/USDNB1229210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1b5570a6993d9a68b2517fe3df6b6da1efb78c961fcc8029aebe323e01b216. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:49Z), 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/USDNB1346202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dad7957b0d0797b2a07ffcd0153c9d07c56f0647cb45c9df1a6dbdd9e22a959. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USDNB1346203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cec6648655c483dea0ec4007e6f35cd4fec6ea310b3ad2331e2bf2a8a55e74b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USDNB1346204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda03fb2c96e2ad4692ffd42fda163b3cc890cd204977eca7eafae16a6f78b0d6. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/USDNB1346206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b16dc4e58397708c48640e9073941ca91048771f6d02a594d9acfb4cb5948b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:24:53Z), 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/USDNB1346208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8480c1ea9e4e045772a9525219d67ac5f6a68f20b996f278e5c412e537628be. 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/USDNB1346209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ef44c17ea7d2492df52987466f861f08c3c2eac1abe91c3ad5d3d002b01baf. 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/USDNB1859091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03814506fb96fc824e6f7f76a3b38b054a87862566619c52db2536501cd8cc91. 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/USDNB1959031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5af9821ae4d91bc25c447684f02019e59b477e3c5f61c585b4864025c93886f. 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/USDNB1959011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5ed55bcdca281774a7a9c8ae8f8f52fb79350b1cb14151d9d6508f614ff750. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USDNB1962501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2b6c69584e14b5ac81c8a57df85ed3ecc6b6e029faf900dc1c48677b9d10f2. 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/USDNB1962504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861775a66de88791668b1662073757429c0768372ca506df9be848361bacc626. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USDNB1962701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031d6ed67e637c0cfc21e19daeafec1710176ffa7fdee77306d012116241eb75. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USDNB1962705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa391e1439800fe4577e3cb68c8539be80b85115af37f526d2e5a4dfc5ae71577. 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/USDNB2474841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf2a50cf4867e6b198ddfbb69eedd4da76334db710b577fc0e0789f9679ecda. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US7VG2516835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c7e4396fd089b25c1961f478f0fd34a3b103acc504959dc02cb9a0f4ad65da. 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/US7VG2516840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c875c89492f74009acc01fd65633f613aba1e505ba437b02b673b8740e5079. 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/FR59R1644782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fea4facbcd7f92d6c6e8c91be0eaf957f12957620b2f3e268dd2a0e0b0a7c4. 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/USDNB1127002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b684d4e7985b67c7a4952cabb91e039606d96836b1b28c5f3c2213de10fc13. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USDNB0545409.
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