John Michael King (May 13, 1926 – August 17, 2008) was an American actor most often associated with his roles in musical theatre. Biography The son of actor Dennis King, John Michael King was born 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f2a1a5a42a8a933ed4b5e1bff326232ac7d8694a049e1a008da8536be0b975. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce5e00b9-7c26-4ebe-be56-319494f1c38b.json and https://artists.proofprofile.net/proofs/artist/ce5e00b9-7c26-4ebe-be56-319494f1c38b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).