Nam June Paik (; ; July 20, 1932 – January 29, 2006) was a South Korean artist. He worked with a variety of media and is considered to be the founder of video art. He is credited with the first use (1
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 0x701827c7ba272054bbcc1c810420bc300fdb4d9f13f1e920f42d7c8836cebae1. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13d91a48-ffac-4844-b726-3040dafbf477.json and https://artists.proofprofile.net/proofs/artist/13d91a48-ffac-4844-b726-3040dafbf477.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).