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 0x0e6376ebf14ebf6d89c0db49ea7bae0f6e8161e48eefe8309dd43729e832d863. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a83ce91-75d8-42e8-8c1d-6d89b8dd6f44.json and https://artists.proofprofile.net/proofs/artist/1a83ce91-75d8-42e8-8c1d-6d89b8dd6f44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
テレビアニメ「悪役令嬢転生おじさん」エンディングテーマ 「マツケンサンバⅡ」
テレビアニメ「悪役令嬢転生おじさん」挿入歌 「銀河鉄道999」