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 0x9c7031b883e53dd8474d50133d8375b900cc34d546911410a56cbc94e2bbc4ab. 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/ec2a84f3-8f7e-47bb-be37-d027a60d7d95.json and https://artists.proofprofile.net/proofs/artist/ec2a84f3-8f7e-47bb-be37-d027a60d7d95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fantasia op.1 in C# minor "Melody Stealer"
Kumikyoku『Shisha no Sho』 - Ⅰ. Descent to Abyss
Kumikyoku『Shisha no Sho』 - Ⅲ. Crucifixion
Kumikyoku『Shisha no Sho』 - Ⅳ. Reincarnation