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 0x3f54d9244d339c6a58a066754404ba5ccb99d1d38eea7a14041c9e188e450dfc. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40414d3e-9d59-4148-89e1-0ddc45a46cd4.json and https://artists.proofprofile.net/proofs/artist/40414d3e-9d59-4148-89e1-0ddc45a46cd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Imawano Kiyoshiro Little Screaming Revue
ぼくの家の前の道を今朝も小学生が通います