パトリシア・マーティン (CV.ささきのぞみ)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ed0bbc3b18ba814bc4f8aa97c2c1dd582a86710da01cbf10db269951527fff. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe2be611-335d-4c38-aea5-cae559579504.json and https://artists.proofprofile.net/proofs/artist/fe2be611-335d-4c38-aea5-cae559579504.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ『らき☆すた』キャラクターソング Vol.008 パトリシア・マーティン (ささきのぞみ)