Günther Johannes Jauch (; born 13 July 1956) is a German television presenter, television producer, and journalist, best known as the longtime host of Wer wird Millionär?, the German version of Who Wa
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 0x5ff04f731ea54e1d69b58a59b1b9d12c5be6ac0d4578778cfe98ec2844befb23. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f00fbc4b-a70d-4edd-9903-7349b7a928bd.json and https://artists.proofprofile.net/proofs/artist/f00fbc4b-a70d-4edd-9903-7349b7a928bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).