月に足跡を残した少女達は一体何を見たのか...
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 0xddebc3bea3eae95446f149e13b3d8a60c57b4154fd68103ef7c33b63c5932f60. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1e44739-a183-4515-841f-019db1f71f02.json and https://artists.proofprofile.net/proofs/artist/e1e44739-a183-4515-841f-019db1f71f02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).