Daniel Fehlow (born 21 February 1975 in West Berlin, West Germany) is a German television and voice actor. He has played Leon Moreno in the German television soap opera Gute Zeiten, schlechte Zeiten
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acf5ee932182a2f121f99f6e62df4ea0502471b79b9ea33f7a75a35e372bedb. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8d516a1-ab62-4772-8b2d-681df43a7035.json and https://artists.proofprofile.net/proofs/artist/d8d516a1-ab62-4772-8b2d-681df43a7035.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.