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 0x7beb0daf473752fe14c6567997bcae42222304b64398f561150c8185f0f54725. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d1f8653-4eb3-467f-bdc8-fad039192205.json and https://artists.proofprofile.net/proofs/artist/4d1f8653-4eb3-467f-bdc8-fad039192205.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「一寸先は闇、一寸先は光...どうなるかは自分次第だ。」と言った元カレの後ろに私は計り知れない闇をみた。