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 0x8fba3dbf4d9972d8944b2d9479ce07acc1871c93f652a747c3c0c2beaa2de9dd. 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/a94cf5a7-fbcb-4949-8ca1-4141441892e4.json and https://artists.proofprofile.net/proofs/artist/a94cf5a7-fbcb-4949-8ca1-4141441892e4.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 0x6ef5774884302c6db602274cc4eb8ae0fbbb1968c1b74119a7af67cf230c59f5. 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/GBSMU2727259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f0bbb276bcbb9f5d90ed8f4bc12b0f638a49b293cb349b38e3fb62ba5b3da4. 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/GBSMU5886048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da6fbf6ebda4823655022e10fedbfb84537282cf6e09dc4689ef5da9ad67b1b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:02:14Z), 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/GBSMU6718939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7eb0eaebe9bdfb7b2104126b5b145a87e723bafaee5787c8a494f955f8b40. 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/GBSMU6718942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5304f82e9e11bcc6fe7b742ba9a306cb478593edc710789cf6f412ddbe7c3ae. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:19Z), 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/GBSMU6718952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1b571dfd29ce4d4da3aaae273c1a3b2eb2525a6c337d2f99784c81009eae66. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBSMU6718955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffb6a3eaba672a644ab710e7e8052e71ae96da4cf07d88f5a45b4c55cf9abbb. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBSMU6697391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7461d8dc4f633c12f9f4dc69e1b83aa99fcea0affbf04e52aaa093ff0d7334. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:22:48Z), 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/GBSMU7051350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceec26a9c9b3fe011b6e129e97a68174d646968e469e3071736bd1264c65ec7. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBSMU7051346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b69a497c86b1d50c180290556ff4c0fb99bf006530eeee3b313021ab51b8e9. 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/GBSMU7472509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa014962ae08e778501a24073d656e7d7e5f798b5831dbf92990722713ed8b020. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:15:42Z), 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/GBSMU7472511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294aa7bd11d0a193aa5b91256c4261bf042cd177d39e0468d3e7bcf6edc5a960. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBSMU7472512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaed0d643bde1c80705210e46c007c9f9729badff489e335b1d939b96525d74. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/GBSMU7853902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46383401b4b3f3f5c10dd024c1d518e83a4a6bf4fe0fb3c0967989eed90c7505. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GX3HH2145207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd08bbbf766c449152fa2d08cee75dcfc25634d048749638d4e687b048efbfbd. 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/QZAKB2134913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0893a8c18d3849d8af3083d716f2cbffd5cbda723a01a10983671d39c473e85. 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/QZAKB2134914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf05157b0084e83496547e8044aadeb59e40394915161eb12b38b1b85ff25f1. 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/QZAKB2134915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2913ff079b45ccb268ab010bb28cf45281504828a5bbce890879bec970f8a7b5. 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/QZAKB2134916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f13759c14e99e636a4481d229caaa2e8e7e49cd5ad93fcc451fb38c5e616fdf. 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/QZAKB2134917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d8872ef1207eb565a51d7f6b1a4ec8e7eea8939326dcff39d207c0212f8e2e. 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/QZAKB2134918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a0e96e4965b801e7174c23e963b48c7627299f0db7e57e0895bde3c8a485b4. 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/QZAKB2134920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad1754214b37ff4c8e3f4d7bb4a8320a4ada53bf26bfd73b13d4e8a8685de6e. 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/GX38U2214935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b66263506e015acec582e70ff885bdebf8f52bb1db06098160f4b116160c654. 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/QZTV32245280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41fe6524cb8bd7c25b0c8d68a1889053a4eac2c98ac4f7d0abdc0c7105e24a2. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZTV32245301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c8ee366e48853d0972b30f33bca23974d9625cc0dfc99cfb8b5c4ebecafcbe. 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/QZTV32245306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebfb527d5d610a7578355cf8834a01b5e4eb54be1725ad5e6a3985718f1b693. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTV32245312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd786df8785052b2195b3193d63bb6c2533542c61f6348f1becf3f381b85006. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZTV32245317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce4a41e2886efe04e7f54b2421e879de6fc43342719102e15ff0263acda6bd8. 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/QZTV32245319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00a9309acb538fa03579d9d2fef829d033e66c17304b937614f6e5de1ff879d. 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/CAN112300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3557e0a581d431664df5ca662f6771b5f870e2a5892a3b965bf3ee76f8bcae64. 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/CAN112300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f9434703f088a6c2f5c7149fab66dc11343e5669a081f8ff80c0452225b181. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:39:20Z), 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/CAN112300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d810923dea0e49985c7e15c00e225389ce275281884f0543b6b7eed0d8fbd4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CAN112300465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6c3418e98bcff75ea69cef6cb0f39fb72da14bc6b89d75cdd5618c05437563. 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/CAN112300729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb883fa9ccc1716d6d25c3441f6c53aaf0f47eeb88fd6aff1e4a562c0fc13a43e. 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/CAN112300820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b01b418ec10d9d02d43cb77270bf5d78776597c9082bf81ee9bd7b691f4357. 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/CAN112302012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfabf3bd1d836ed446607ee9be66481e8871cfed43a3a2eb7547d0f63a66282. 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/CAN112302154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b01b418ec10d9d02d43cb77270bf5d78776597c9082bf81ee9bd7b691f4357. 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/CAN112302012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac27c0c9f32ab89bb379a7c35d7f413e7442788dd682415772fad3caa6b2711. 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/CAN112302155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ee768abea3562cff8605741fcb2162e952971fec536adb5fa1088e06fac95e. 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/FRX452403070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e705a7e7e9650c1efd9e1cf2562c8d5c99ba9733a0fac2062ad1e18e66b94. 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/CAN112401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583a9ab84d260f102d43bce8b009ce18e7d30dc277b075b95541097b531f6f0e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CAN112401931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158915ae1cf5d97ab28784587f543131096ceca404064c44df31053a601a78ac. 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/CAN112402020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f1fe71ff6cc184cafc312994b93099c6eb2e8c921cf009d97a5463d7373add. 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/CAN112402019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777729fae7220cdf7754c2dbca8143713beeb90bf4c8ef57dbd81ea4cd75de0e. 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/CAN112402247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceec9e85e3aad71d4b3bc50130ba67a0b3ff44a84fd27eb0a274e8ae250d461. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAN112402420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628c1d9bd062bebc3d736f66911329a2fc712c7c711d4d4168ea964520acec87. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/CAN112402431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d4c9ee411789b47e042f64a3a8d05af664d55e7396a7f9bc18931d07ba6748. 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/CAN112402675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5857f6a1887bff0f69c84fbb10e852550f88ec3cf3181f8fddbdeb427a517177. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:26Z), 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/CAN112500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583a9ab84d260f102d43bce8b009ce18e7d30dc277b075b95541097b531f6f0e. 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/CAN112401931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bccd9bacc4875744ade65b77eb284857c5b411f48d367ae8c70ef2c8dc2c1f. 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/CAN112500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158915ae1cf5d97ab28784587f543131096ceca404064c44df31053a601a78ac. 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/CAN112402020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628c1d9bd062bebc3d736f66911329a2fc712c7c711d4d4168ea964520acec87. 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/CAN112402431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e705a7e7e9650c1efd9e1cf2562c8d5c99ba9733a0fac2062ad1e18e66b94. 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/CAN112401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e46a59cc17f3d304e5e6f191bcbdd8e1be5bd42e75d97b8a229255db2cb1c77. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/CAN112402275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceec9e85e3aad71d4b3bc50130ba67a0b3ff44a84fd27eb0a274e8ae250d461. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:49:29Z), 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/CAN112402420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaf748e7edc82c5e082393063b127819d14baa91fda96672b54e08a6c47697e. 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/CAN112500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1d2781c4e4b73b8b8492b5b9a53d0c5ed9063a05c8c7ae45385c78db316eb4. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/CAN112500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777729fae7220cdf7754c2dbca8143713beeb90bf4c8ef57dbd81ea4cd75de0e. 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/CAN112402247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d4c9ee411789b47e042f64a3a8d05af664d55e7396a7f9bc18931d07ba6748. 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/CAN112402675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6700e510de73b96402fef76faee4df5ef752e865fcc6bbe7bfae8dd6d8c3843. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/CAN112501009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ca30cd51f123eca591e0027c6bec1b2c9b743b336db8f4e6da3328e01fad54. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CAN112501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464674a9aefd407159d855ed6b4265ffd2bf3585662b9f4c82d3a0f63880f607. 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/QZN882226130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed71cc3a013cc043e36cb171bdcf7adefc7c34753b32ef38dc6a335cbcad3d9. 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/GBKQU2184037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ba6261be1ab2031fe6987922424a791cb9643ffd3395d93ea5f0c6db2cd670. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/UKZGC2502221.
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