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 0xec8c19c92490cce8920f9c08ee2755926f8803b4d05e25c6c2b232935f72fe82. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/415deef8-6376-4da8-9def-22d42d3e8170.json and https://artists.proofprofile.net/proofs/artist/415deef8-6376-4da8-9def-22d42d3e8170.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
心を込めて‐APPRECIATE FOR YOU‐ another ver. - オリジナルカラオケ