Lilja Sigurðardóttir (born 1972 in the town of Akranes, Iceland) is an Icelandic writer of crime fiction, a playwright and a scriptwriter. She was raised in Mexico, Sweden, Spain and Iceland. She beca
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 0xd929b4937d3ff8a3812cada6a680fc30ff1cafc995c438912d91ddab93c05610. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11bf9b33-2244-4d1a-bd31-1f6314d9e015.json and https://artists.proofprofile.net/proofs/artist/11bf9b33-2244-4d1a-bd31-1f6314d9e015.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).