Hartmut Becker (6 May 1938 – 22 January 2022) was a German actor. He played Sgt. Gustav Wagner in Escape From Sobibor in 1987. He also starred in the 1970 film o.k., which was also entered into the 20
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 0x55c682d974b3f1b55221555c939762d6a7c1dd95db0f455755b2b090567ab37e. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2503d713-e2f0-472e-be34-3e7aee492d39.json and https://artists.proofprofile.net/proofs/artist/2503d713-e2f0-472e-be34-3e7aee492d39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).