1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2e3aeef95746e180251b4a807009521947d59abef479bc14526325a8ce5f076f. 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/0b892dca-79b1-41fb-94fe-02574a40baea.json and https://artists.proofprofile.net/proofs/artist/0b892dca-79b1-41fb-94fe-02574a40baea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173b544a5b7296dbe87d9784df1b70c08c26151b233046b61a3694db8bbd4ef5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0xpYN8CX7B0cBnB96u7y7F.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0xpYN8CX7B0cBnB96u7y7F.
{"copyright_id":"0xa51f27fe9cc84fcd4b276b5096bf0785bd220a9c5ff3e5ce883912a833b3d928","isrc":"QZNWR2379280","name":"VICIOUS VAPOR","registered_at":"2026-06-27T15:30:28Z","spotify_id":"3ISzcLDnDcHMd8fuG9Sxq3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51f27fe9cc84fcd4b276b5096bf0785bd220a9c5ff3e5ce883912a833b3d928. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ISzcLDnDcHMd8fuG9Sxq3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ISzcLDnDcHMd8fuG9Sxq3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6572b43bcb55582b1adb1954af1623b5c16f91443952b90cced60313beaaaa77. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0JV40zX9A2kynMaaxoNaZ4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0JV40zX9A2kynMaaxoNaZ4.
Freedom Inside Your Illness - LS41 Remix
{"copyright_id":"0x6b4d344a25286d3668d7431ddbbf76b8818b0362ebae80beaca3f2ca3442301f","isrc":"QZS632356291","name":"Freedom Inside Your Illness - LS41 Remix","registered_at":"2026-06-04T08:55:35Z","spotify_id":"0jyKIDX9p5y8FdszAMoGCI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4d344a25286d3668d7431ddbbf76b8818b0362ebae80beaca3f2ca3442301f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0jyKIDX9p5y8FdszAMoGCI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0jyKIDX9p5y8FdszAMoGCI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86e43e67a165875ca31dbc1a32a09f59a881522f06d37af310de24be141a92b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/44KYWQAHSguh4QABOUgpNB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/44KYWQAHSguh4QABOUgpNB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba08bf636b6ae28bab70deaba85d9241ff8d83e8355811e406e91063d286248. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4WvnhRyAwCwAXE23Hl9s5k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4WvnhRyAwCwAXE23Hl9s5k.
{"copyright_id":"0x3b54d657dc4b8f6077f9f98dfa96df8feac2ea4bcd0e090db089e5d33eaf6142","isrc":"GBMJG2324431","name":"KINSKI - LS41 REMIX","registered_at":"2026-06-22T20:41:39Z","spotify_id":"3BCqqZaRXpiTwvln2yvvxt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b54d657dc4b8f6077f9f98dfa96df8feac2ea4bcd0e090db089e5d33eaf6142. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BCqqZaRXpiTwvln2yvvxt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3BCqqZaRXpiTwvln2yvvxt.
She Likes It When I Choke Her - LS41 Remix
{"copyright_id":"0x1ddf934bf30603cde23e61a4b907deb1072d6226009dec767005724f9b622122","isrc":"NLCK42416658","name":"She Likes It When I Choke Her - LS41 Remix","registered_at":"2026-06-24T21:19:09Z","spotify_id":"2iIpe90yb1jMvB0UcpOyWa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddf934bf30603cde23e61a4b907deb1072d6226009dec767005724f9b622122. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2iIpe90yb1jMvB0UcpOyWa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2iIpe90yb1jMvB0UcpOyWa.