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 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 0x1ef6f48014a4521e4bf88c1deef3245f4f1cd3510342255cf6dd84e2f034fe2b. 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/ba4d9b50-b2f0-4896-aa8e-e8bb467fb712.json and https://artists.proofprofile.net/proofs/artist/ba4d9b50-b2f0-4896-aa8e-e8bb467fb712.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 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 0xec7a956e9a4bd1c2fa3a0f40848dbd63195b90953c5f5af52a69884250562816. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCABB1108883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a1318b970f1089b830ba8cc14ffc8ee4137a4ac86dd2197b72b0292aae9e52. 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/TCABB1109016.
Animal Kingdom (feat. Dontez of Kings Konekted)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6f6c484e471f913899931acda53a9e494a05e3a0e5948583fb21bc9044ce67. 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/TCABB1109035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b0dee0c8f5afdc7ef0ff12796da3596f3893a420e81e5a8fe066abb3b91b4a. 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/TCABB1109058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6856aa1c8b29f81aa0eb9a20189d128dddbd6183a42d863435fdd8c80f547ab1. 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/TCABB1109063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2179a745b2de893d8d733c2f02520e376f66bccb5a82934086a5ebdaa2d183. 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/TCABB1109068.
Russian Roulette (feat. Brad Strut & Kings Konekted)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c253fcfbe7e34651e3ebaca0512b3658b6fdb1e7eb6cbacb6b4b27cf2d835b. 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/TCABB1109081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88c97c4bcb2afc89f7e66ed79c6b221297fe1875b1e70f004cba926b202453a. 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/TCABB1109114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4815303ee356b045adbd938139f291374686446fbeb3b0001c30ae7c04a6d4cb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCABB1109138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04513b11acea014f87376058ffc5b1d245b0da92d067e0bec8aa02376e39c55. 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/TCABB1109142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fc1125c40767af3f00b0fc59686d0848aa4e493fb3460a14f903c8ccefb2f0. 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/TCABB1109167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb439595c83e7c3785326501c3da6cba88ba62de9ae6c51cd57230f954207650. 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/TCABB1109213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582396148b7310834504ce559bf1effbc161495b2ecbeb641143125f01fe11ff. 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/TCABB1109230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b723882e3a1fa319e7f26a9ccb19359035bf494d8e32243d50aac7179879f0. 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/TCABB1109246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deb972b8f2d3c074add53869e5a444037ab61a636050aef7adef24e82c4db0b. 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/TCABB1109264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ccfb18ddf528ada93f71aa590ba84045d0e51ce22879b746be678484230090. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCABB1109272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427250a72ed506c9e7180bd3f322d4512c123f79ef45c23557192fe0cf704d77. 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/TCABB1109286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86a6514632da14e81eb81f4646f1840e400eefba07e494440b34ca29dcfca74. 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/QZK6K2085282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe618f82faee77d9d1b7eea1ae1bf9a9e485ae9d9327682c602bd550c36973895. 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/QZK6K2085283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896232231544cbf0fd90d45627a96bd8938cabb10053b16066925f8def53548c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZK6K2085284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5451d0f20a6b06a27777316ee6c04e556a5c2d079a44e14c7d304056c4b7aa. 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/QZK6K2085285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05901302664efcb1207728d18a972bb937d129f8fc3741c260819a7fd8d2b122. 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/QZK6K2085286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2eccacb6055d7b5bf6ad7efc2be256dd461b3b789bddd4197e19c2f3f5bc392. 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/QZK6K2085287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ca7fd235cf08047cf4cde7d9c994c914315c189119f341776f26d499392978. 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/QZK6K2085288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6a07ac1d8ce89ae2cd1364e6ba9017b7efab41569b95dd3f8872079eb246bf. 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/QZK6K2085289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86642290a8363d16e05bf523ae719feb795935e23cf00fe3d8f85b8595394a27. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QZHNB2236725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58631e0fa2a66d5661d2834cbbe78feb83631907894ee3ebed0c26a32a4c212. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZNWQ2174019.