Aikaterini Hadjipateras (; born 9 April 1957), known professionally as Kathryn Hunter, is an actress and theatre director known for her work in physical theatre. Hunter has appeared as Arabella Figg i
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 0x9496abd9f33a9e1f937ab0677dbc9a9c3b8ca55537e17fdf7f43be3f4e0646bf. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9380a387-f2a0-485b-b7c1-e9f6565db89f.json and https://artists.proofprofile.net/proofs/artist/9380a387-f2a0-485b-b7c1-e9f6565db89f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).