Kitsu can refer to: Kitsu Creek, a creek in British Columbia, Canada Kitsu Peak, a mountain peak in British Columbia, Canada Kitsu Plateau, a plateau in British Columbia, Canada
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 0x4d8ab0cbe6c2ca290648ff0c49af29d1c1ba7a323e9f41bde2cd2b8e318e11dd. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad78fc36-29cc-4b6e-afdb-bdc038386179.json and https://artists.proofprofile.net/proofs/artist/ad78fc36-29cc-4b6e-afdb-bdc038386179.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).