Hartmut Becker
type: MusicGroup
description: 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
popularity: 4
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55c682d974b3f1b55221555c939762d6a7c1dd95db0f455755b2b090567ab37e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2503d713-e2f0-472e-be34-3e7aee492d39.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2503d713-e2f0-472e-be34-3e7aee492d39.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2503d713-e2f0-472e-be34-3e7aee492d39
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55c682d974b3f1b55221555c939762d6a7c1dd95db0f455755b2b090567ab37e","name":"Hartmut Becker","registered_at":"2026-06-16T02:30:36Z","symbol":"NIM0909343","token_address":"0x9f95d6b830147ec69f18c1b27ef5989a8690d959","type":"artist","uuid":"2503d713-e2f0-472e-be34-3e7aee492d39"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-16T14:18:37Z
  text: {"copyright_id":"0x55c682d974b3f1b55221555c939762d6a7c1dd95db0f455755b2b090567ab37e","name":"Hartmut Becker","registered_at":"2026-06-16T02:30:36Z","symbol":"NIM0909343","token_address":"0x9f95d6b830147ec69f18c1b27ef5989a8690d959","type":"artist","uuid":"2503d713-e2f0-472e-be34-3e7aee492d39"}