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 0x4642922758ae117df9e3e4540305145fb24b232d698987c2d7c0eb318fdeb863. 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/17370d21-989b-4876-901b-71b006c2f1c3.json and https://artists.proofprofile.net/proofs/artist/17370d21-989b-4876-901b-71b006c2f1c3.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 0xd0e6507dda54bbc37e808f246b6fe95c71878bb690bfc172835221f59b3e1115. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0XLWCXWf6Cm3CcWAuDSx7k.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/0XLWCXWf6Cm3CcWAuDSx7k.
{"copyright_id":"0xd7f1a821ca09228758f72727ecb0555d5acfcbec4784dc1ea13cc4e6940864dd","isrc":"QZHN62385353","name":"Just Me & Yahweh","registered_at":"2026-06-29T17:05:39Z","spotify_id":"2TQQv51OeGBSAXOMjZp0g3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f1a821ca09228758f72727ecb0555d5acfcbec4784dc1ea13cc4e6940864dd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TQQv51OeGBSAXOMjZp0g3.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/2TQQv51OeGBSAXOMjZp0g3.
{"copyright_id":"0x27b224ac5545a927284d16e462ba54d4aa4f833a68505eaa91a23c918cb8fd63","isrc":"QZDA52547662","name":"The Lord Called Me","registered_at":"2026-06-29T16:54:36Z","spotify_id":"1D8fBbCK7HjVeEcOcdbOux","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b224ac5545a927284d16e462ba54d4aa4f833a68505eaa91a23c918cb8fd63. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1D8fBbCK7HjVeEcOcdbOux.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/1D8fBbCK7HjVeEcOcdbOux.