Richard Kim may refer to: Richard E. Kim (1932–2009), Korean-American writer and professor of literature Richard Kim (karate) (1917–2001), martial arts expert and teacher Richard Kim (car designer
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ac36768ebe3f49aa1a07332273c401be7c4e8db4fea173e70e28e34bad6d5b. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17d28c3d-0ab5-40d9-ae40-de2e5e68b262.json and https://artists.proofprofile.net/proofs/artist/17d28c3d-0ab5-40d9-ae40-de2e5e68b262.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).