Alan Persching Dexter (October 21, 1918 – December 19, 1983) was an American film, stage and television actor. Life and career Dexter was born in Oklahoma. He began his career in 1943, appearing
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 0xc582734fe51d0d9d35a3ffcf95c3770cb77bf5490671c3b193bdafa9c6603207. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/410ab3eb-aa77-4cc2-a291-15979ca2158e.json and https://artists.proofprofile.net/proofs/artist/410ab3eb-aa77-4cc2-a291-15979ca2158e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).