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 0x77b300f552b44004768dcb3a204586956d7fe1d48ee0b9dd6210864959f67bfb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91f0ecfa-c552-411a-a887-f41ad7250d25.json and https://artists.proofprofile.net/proofs/artist/91f0ecfa-c552-411a-a887-f41ad7250d25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
映画「十二人の死にたい子どもたち」オリジナル・サウンドトラック
あなたが居なくなってしまったら
12 Suicidal Teens (12 Ninno Shinitai Kodomotachi) Original Soundtrack
「ミンナのウタ」 (オリジナル・サウンドトラック)
映画「あのコはだぁれ?」（オリジナル・サウンドトラック）
Glossolalia - Visible Cloaks Translingual Mix