Kujo is an American outdoor footwear company specializing in shoes made for yard work. The company is based out of Cleveland, Ohio. History Kujo successfully launched on Kickstarter in June 2017, and
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 0x058127f592057e09d94e83f74f1245a33978c01940189df30b28a587671ecd56. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0179bd2f-4e13-4d9c-bb13-b39e72ec41a0.json and https://artists.proofprofile.net/proofs/artist/0179bd2f-4e13-4d9c-bb13-b39e72ec41a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).