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 0x5fe9291f4ff38f68798eb2f955ba3a1f9edde86d926de300b28b8e8b61955110. 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/7ea5f79e-2cea-4ae5-b357-f5d55ba499ca.json and https://artists.proofprofile.net/proofs/artist/7ea5f79e-2cea-4ae5-b357-f5d55ba499ca.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 0x4ff54d9f2d85f24a8e16584ad6e3c9bd57ae9fef6f48898e28fee2f34acfc3f2. 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/QZ63N2200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0827977ce0cbea1f934430cc3d85ad4a183c3f4b173c421d615ad70330ab37fe. 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/GBKQU2384723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b9a48d8cbdf936042d375e2054ec3947fc387fdf8ac9dea16b0789a49d5e9c. 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/QZ63N2400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d1a56e1ec3929b7de73e438f58433bcc476657377004fb9f016fea8392b1b9. 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/QZ63N2400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f74f70b2ac78da549b863f4ae263cad2e22872220c6c4071bb06d5f9236e33. 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/QZ63N2400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1944100e0e587f1567a356b18fc0ec5ba0c6a9ff1d8c7ec981d7793bd4b9532d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZ63N2400413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543133010a57d81f5618ffe5ab69719df96bc869a77d00bf1cb35ff681b939af. 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/QZ63N2400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff7af40113e49c9b2c7c4f5252966efe1dee2e39bd53c307c183d29e6d271f6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ63N2400415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98778b8baba0297535aecfbe4a279b96bcd0b95a99cd8d4ef7460fd6b6997c60. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZ63N2400407.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2235105d771be4f39281911879a6e2c9d9d272ffe4f395c1a68df46a15e97e73. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZ63N2400408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee5abb1a41539d5660e5b537117e10ea8c90953a7b12d0786b53078896db224. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZ63N2400409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf9a2d99e64ce64f55159f00ba30bd0e2d806678099c57584682c0c23b5de08. 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/QZ63N2500489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697ec7698f86d59b68339ea58df4ae43dbe900fd16925db0c5d18e06e51764f3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:19Z), 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/QZ63N2500490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd20e2ee33f3840a293663e43b2b8d4a62899a47114fb5834c24b1a33bd7197. 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/QZ63N2500473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786d262aae1454710187a6a3369aa237044daa33ac549d101b1b340b5e856805. 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/QZ63N2400466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825f3691daaaada172352b2cd68b78451c80ae1b398b58ef100b9507636a18d3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ63N2400459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2791067c20ac41f4048981a6c2b6975785be58b255c992456e50881360aef968. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/QZ63N2400453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a1ed40af580f374d5c37d874f8a617cfa5180e724941f9b86dcf21292fc5f4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ63N2400451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe4bd6e4d53dca63e035e109d7cb134b8c46b6d234bff64d1c031dd5708b652. 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/QZ63N2400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acb5ab8320253ad2cccdc05127f5019c4c8e0d5607c6506ee1ed87ae35edf55. 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/QZ63N2400424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab798374da813fc6fd73da8fa75aeed5c85bfad56516056dafd95aceb688fa17. 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/QZ63N2300389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf64cfc58b19e4fd6662baaab12efc31507b826ec0a9ba49830a17198fc99ca. 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/QZ63N2300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3e448d263d8462023e3770ae1fb8dc92e3f6e2c9f895fdee38a41784c90e8b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ63N2300382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe05d3d9dfa2f341651a07820d9f5f20f0e56efa80693353bdf10306c24ead0. 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/QZ63N2300377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecde013b4f4a7648fec30e91a6f958def4f3498f0759a3a9401d444323da98d8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZ63N2300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ba6e0a75737e089cea5cbdd06f3d88dbe8de52bca52174454c89e1e3dfaff. 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/QZ63N2300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7791051e91e17f9b489237a5bca717673d52543c626e6234b3e9b37d33ea9ed4. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZ63N2300354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8d9b4d628ab00d1c4f4b2331b56acd9cb0714b13d5bbc8bfea447e7bddad46. 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/QZ63N2200323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603da38e2d71ae05add4fee78b4523e35a748e003088fdfa6fbd74c483db8ac. 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/QZ63N2200292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e947897e87ec7b8bb02b07758cf686c13efc7bd7bc62741dae6bccfebd57caa. 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/QZ63N1800122.
Get The Funk - Angelo Ferreri Remix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa125201758de8404f6b0384b7068634fe554bd3a6986c9203f49cb622477277. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2335215.
Running Out - Angelo Ferreri 'Glitter' Mix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4bfe6d232071da0951acb214fc8b6b2cfa1693a28e29956566471fb0c69743. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBKQU2213166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8209083d57f23c0df61a5a4b59d999544981a16e6ea605e5fbf0e3eb50cbaac. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZ63N1900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371658ad9853f7b4eee4ba050b38d3912d4a0acfdd4c08118d72bbd2c3659982. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBLV61716422.