Anna Panagiotopoulou (; 30 July 1945 – 4 May 2024) was a Greek actress, who starred in many series, films and theatrical plays. Life and career Panagiotopoulou was born in Kypseli, Athens, Greece on
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 0x439bf92145cf7e81b6d914ce07aab89feef1dd35bc29427ca3d386d54d8bb3b8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f781ef61-60e4-462c-9670-b1de03f5fb49.json and https://artists.proofprofile.net/proofs/artist/f781ef61-60e4-462c-9670-b1de03f5fb49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).