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 0x9e4d36b364b52cc53ae93418b3ba84e512172a7d3d62bbed9dc67538c89d3e1b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b61d6931-dee4-4d5f-afef-115f76422e19.json and https://artists.proofprofile.net/proofs/artist/b61d6931-dee4-4d5f-afef-115f76422e19.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 0x5ec9ada2121dc5ed9a4a1bffc4efbf50da48de368e74d068bbac952c05aee7c4. 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/IT4OS1900007.
Prova a non odiarmi (feat. Nashley & Danien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec9ada2121dc5ed9a4a1bffc4efbf50da48de368e74d068bbac952c05aee7c4. 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/IT4OS1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92de4114caa3aaf5facabddbbc2d35cde25bc3adef915e0996f08da665289b43. 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/QZFZ22038183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab5757af7428ec61936e5279e85b0257e76162f5ce713671b84ab01040c4e8e. 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/QZHN52071558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3566665f904a7d7b1d26d18c9f2b80a108981e7a0c37fa757e55c273848bf591. 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/QZHN82013529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d7db4991d87c062801da821b5bfbd7dd3b415744b9ccb57c349980145d6b23. 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/QZHN82013531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91eed587679bb76f6433a375d649ff4d3549efa85f3c1826c771f8b8efca777d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITK252140005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618b3e5220e192fac678d63c45268ed9076ea2bd4d130cc9e1aaed168cfc8554. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:52:28Z), 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/ITK252140012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0260aa0c60fccb5c75ceeb58aedbb92ad1cc29fdc9606d1f974ecea7245d0815. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITK252140003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91eed587679bb76f6433a375d649ff4d3549efa85f3c1826c771f8b8efca777d. 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/ITK252140005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09e8dfd19db3c2017a70a4e9ba5fbb6c17e854c4e0965a11fb5b632a62d7a71. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ITK252140017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ee9a2c8da51c656f8f1fe256d229fa65f60df6f0d32d607ddef26f804a275f. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:19:55Z), 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/TCAFM2122421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950301746d30cba726751bb25a32468d0d3045d6f758590599d1eb6b409fdb7f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:31:38Z), 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/ITK252240004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b31d9d485065c7f29822ca3317c185859ab0fc5cf0ccb72ce2f8fb0dd130ae1. 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/TCAGY2337430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a796bc4c15f4d0dc01d02ee302e04cda9a1ab9857b08a4509eff219f2b5169f. 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/TCAGZ2393421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d6d37250fc858de6b21645b00e15385df754752c24c60eea01d349125e291a. 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/TCAGZ2393435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3392ac7607bec093a3878f5908f49a60484acbd46ceb5a3476c9619457bfa5c5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCAGZ2393453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc1ea87643bcf5287d865acf6497db333892e6d094dbb1bb8e8ad64f33fa278. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:41:24Z), 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/QZTAX2264370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcda961cc4666d2047c719bf5e24c463cd737bfdd027541a1edff9d726b15b3c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:18Z), 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/TCAGW2312323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3390d2ddf205c9c6907c230f1a028ed41c91a7665c071a66b84ed2bc0f8e63a8. 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/ES71G2404836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583df7dc84070b0522ac35b078f894cf5d429ef2d42b2cf894ea39db458e143b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:31:51Z), 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/ES71G2413895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e13898f073658195428f0c107d3a949f81f63ff2ab928df772f023d8ce21e5. 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/ES71G2416512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f46b3ae0c1b45a32f3add30ffa93eba93ea24edecb41c7a23698cc734a1b54. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITE2A2201280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509d1bfb6e8f02b8aa884476ec8d27787fe1bf675f361d5538be95fc2a8cd74a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:25:22Z), 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/ITE2A2201281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9138d8821ff08b11e3850eee5c9e43e17815c72e9e2c42149694b5eadde4759. 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/ITE2A2201282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2838037e1442b4d2ab0b91c1cc43700648d2f5d6ce15229f202857c668e1b17. 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/ITE2A2201283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d8ad8cc9e56cfc3f70395d6c80dcbd08256dbf5d5f3c323b9cc54ecbf67c98. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITEGN2500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d840e265ba0524c2473d474fde29c1f94983ac8fe0a9267262d1ca9f1606a5d. 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/ITEGN2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cca68084c6605abb3704d1faa229c8d8f9c29a75c05abfc3323a7cee815d93. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ITEGN2500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350e31e7b450dfe8ad8557a8f62c01c851cb8aa0bc03c49f0de2456d9a0c7563. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6H2116571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b5a4c7f0d028975a3a43134b5ec5068497a8a7bf48695d44322c9eadb099a6. 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/QZNWR2368243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf66e9264f23bb0b799cd43469e2766eb5186b8e1cc4c4a19176362e664043. 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/ITAXQ2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf66e9264f23bb0b799cd43469e2766eb5186b8e1cc4c4a19176362e664043. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITAXQ2500028.