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 0xf1b977a39956ed281deb78cef007807c2c2b448513b772ab51770f5d1ee8bae3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5b14694-9187-415e-bec3-9f72006c6528.json and https://artists.proofprofile.net/proofs/artist/c5b14694-9187-415e-bec3-9f72006c6528.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
kekulé dreams the great serpent holding its own tail in its mouth
Branches + Song Books (Solo For Voice 8, 50, 84, 91)
星とレモンの部屋 (Original NHK Television Soundtrack)
生理のおじさんとその娘 (Original NHK Television Soundtrack)