UI, Ui, or ui may refer to: Arts and entertainment Ui (band), an American post-rock band UI (film), an Indian Kannada-language film released in 2024 Upin & Ipin, in which the abbrebiation 'UI' sho
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 0x9bc713e1f57536cc70f8c47f981005ebe3c87e1a9dee0a1dfb319fc02c1ab8d4. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ca41411-a636-49b5-a252-3e4aa34712b2.json and https://artists.proofprofile.net/proofs/artist/9ca41411-a636-49b5-a252-3e4aa34712b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).