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 0xb611f7399b8c77513a678fd8d66ab0e83f52e5bc527a7ec4112be601a1a52c00. 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/5fc9fd53-e84e-4d06-bcbb-83dd3ee8ece2.json and https://artists.proofprofile.net/proofs/artist/5fc9fd53-e84e-4d06-bcbb-83dd3ee8ece2.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 0x5bb677882a5996ea64af2a1ee72d9bdd02b5b663ba1e706427ba64f5b9beebe1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ITZ041400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cf057ae2cec98c11e1241b0f428921946b416934036123b48f7e375bbe137f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ITZ041400102.
The Man Who Stole Banksy (Music from and Inspired by the Documentary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa2adef978ca1e3385625d427e40ea24259c5efe8b43cb2e7c9d6b7e979cf08. 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/ITZI71700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ac8eeb745c9ca56f75e98930d1a80dd1251872dbb55c8a94c6ffa8584c477c. 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/IT1O72100775.
MURDAMURDAMURDA (feat. Ocean Wisdom, Ward 21 & Victor Kwality) - prod. STABBER
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9ef78dddb341d4999d81ad62565e06eafcb360fad1f68188fb25fcae24fdd6. 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/ITB002000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a8c1de15e23bb2ceae3accd96a608bda4ca840ff79d8fc67a21fc09943d616. 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/ITB001500429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a8c1de15e23bb2ceae3accd96a608bda4ca840ff79d8fc67a21fc09943d616. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITB001500429.