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 0x895964e8b74eb45693c64702fdd654a08e8b8e247b24141e00d10c99788818d8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/829f4ad1-144b-4e72-806f-7fcd4eea7973.json and https://artists.proofprofile.net/proofs/artist/829f4ad1-144b-4e72-806f-7fcd4eea7973.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
迷い猫オーバーラン! キャラクターズ:03 霧谷希(CV:竹達彩奈)
Mayoineko Overrun! Characters [03 Kiriya Nozomi(CV Taketatsu Ayana)]
迷い猫オーバーラン! キャラクターズ [03 霧谷希(CV:竹達彩奈)]