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 0x972931b1eb3b5c0059321b51ff08e619a49069a6c645aeda2b05d248cf3ad8d2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd50947e-bf12-4ba2-9a5b-d2820e9013b3.json and https://artists.proofprofile.net/proofs/artist/bd50947e-bf12-4ba2-9a5b-d2820e9013b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ethergaze (feat. Hana Miketa & Ryuta Ueda)
Hanamizuki (feat. Yo Hitoto) [Cover] [Remix]