Lee Da-wit (; born March 3, 1994), anglicized as Lee David, is a South Korean actor. He is best known for his supporting roles in Itaewon Class (2020) and Squid Game (2024–2025). He also starred in th
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 0x5e5e7d87ef94fe088adeda89c7b364c9279e45188d0ac0f43b8eb611be651a29. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df64b565-05a2-41da-ab79-cd079d592d59.json and https://artists.proofprofile.net/proofs/artist/df64b565-05a2-41da-ab79-cd079d592d59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).