Kaichi (written: 嘉一 or 海智) is a masculine Japanese given name. Notable people with the name include: Kaichi Hirate (1909–1946), Imperial Japanese Army soldier , Japanese tennis player , Japanese engi
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 0x2c4367f22e429c6a4bf6a06798060d280ad8b5d01a794bd30d00ddb821256ef4. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fca3233d-cb73-45fd-83bc-aa668abeea8f.json and https://artists.proofprofile.net/proofs/artist/fca3233d-cb73-45fd-83bc-aa668abeea8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).