Loes Haverkort (born 19 January 1981) is a Dutch actress. She has performed in movies, television shows and theatre productions. Career Haverkort did her acting course at the Maastricht Academy of
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 0x2782d6551935518b61543170e747b5cc79a69aee63a0f125dbe8068e4eca097d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da75a3b2-de6e-4f3a-8ffe-d13d62ce7b56.json and https://artists.proofprofile.net/proofs/artist/da75a3b2-de6e-4f3a-8ffe-d13d62ce7b56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).