Kim Hae-sook (; born December 30, 1955) is a South Korean actress. Career In 1974, she made her acting debut in MBC's Chief Inspector. Over the past decade, she has won over 10 awards and appeared in
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 0xd1d71553131b03fe0cea91f568da55f04fdd8243a7468bb5eac6e34393144392. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b58b521-20d8-4313-b2cc-97b2699d3f40.json and https://artists.proofprofile.net/proofs/artist/5b58b521-20d8-4313-b2cc-97b2699d3f40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Corée: Gayageum Sanjo - Ecole Choi Ok-Sam (Korea: Gayageum Sanjo - Ecole Choi Ok-Sam School)