III or iii may refer to: Companies Information International, Inc., a computer technology company Innovative Interfaces, Inc., a library-software company 3i, formerly Investors in Industry, a Brit
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 0xf31bcfa0abc5d7f1c0d00b6779fcc7ecd87ae99f74d842ace1393610bfbd4085. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc0af9ad-d2d1-4148-aae1-0c953f3e60a1.json and https://artists.proofprofile.net/proofs/artist/dc0af9ad-d2d1-4148-aae1-0c953f3e60a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).