De Biker Boys is a comical mockumentary, broadcast in 2014 by the Belgian public broadcasting company Eén and produced by Koeken Troef.IMDB Story Three well known Flemish television stars (Bart De
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 0xee2975957788972a1ed382727300474284af0afd63435cdd4a82aee91bc549f0. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a879581-17d1-403d-b34d-aa920c0b8189.json and https://artists.proofprofile.net/proofs/artist/3a879581-17d1-403d-b34d-aa920c0b8189.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).