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 0xcc64247384c7a189637e7a5af0150e28ea9238a3bbd0d42380215adecb265534. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e56c221-81c6-4a6d-8907-b89e61059ac9.json and https://artists.proofprofile.net/proofs/artist/8e56c221-81c6-4a6d-8907-b89e61059ac9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pictur - The Loving Hand Remix - Naum Gabo Edit 1
Pictur - The Loving Hand Remix - Naum Gabo Edit 2
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