Matthias Fuchs (1939–2001) was a German stage, film and television actor.Langford p.246 Partial filmography The Immenhof Girls (1955) - Ethelbert The First Day of Spring (1956) - Martin Hochzeit
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 0x3727e1db3f07d5815d4d30d297f868c1e2098f704e72c5113a66a4633587cdec. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d09136df-d264-4512-9576-8730e7d4f4ee.json and https://artists.proofprofile.net/proofs/artist/d09136df-d264-4512-9576-8730e7d4f4ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).