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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a641a43b5d52f4957241ae4e68ec337fd72edd8230b6e1cfc08d3d76fa4b95. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5476f680-1515-4447-aaca-8fcb77709917.json and https://artists.proofprofile.net/proofs/artist/5476f680-1515-4447-aaca-8fcb77709917.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Speak Silence - Francesco Tristano Pianowave Remix
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