is a Japanese band from Yokohama, Japan. It consists of lead vocalist Kiyotaka Sugiyama, rhythm guitarist Shinji Takashima, lead guitarist Kenji Yoshida, keyboardist Toshitsugu Nishihara, bassist Tak
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 0xe1986c0c1cff8607a39f42d994e104ae81f5f41eeea14cc40563ff7c20cb3a1b. 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/07396eac-2adb-4a10-8903-4888fc1e98d0.json and https://artists.proofprofile.net/proofs/artist/07396eac-2adb-4a10-8903-4888fc1e98d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).