Baantjer is a Dutch television programme which was broadcast by RTL 4 from 6 October 1995 until 1 December 2006 for a total of 123 episodes in 12 seasons.Baantjer on IMDB, oct 2009 It stars Piet Römer
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 0x9061a9bd2ed3488abb059feb11b86b3409480f17b5221e6e901317351a19c82b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15d3e7e7-1c54-45b1-a669-408b149d1700.json and https://artists.proofprofile.net/proofs/artist/15d3e7e7-1c54-45b1-a669-408b149d1700.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De Cock en een recept voor moord - Baantjer, Deel 67 (Onverkort)