is the sixth single by Japanese singer/songwriter Chisato Moritaka. The lyrics were written by Moritaka and the music was composed by Hideo Saitō. The single was released by Warner Pioneer on Februar
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab0ca5a19fc7955c45e1ab3d109ca4fa0da32c0109d02ef46933cc759a335e5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52f39f45-e03c-46e4-9b8c-a854b15d884a.json and https://artists.proofprofile.net/proofs/artist/52f39f45-e03c-46e4-9b8c-a854b15d884a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).