Bruno Apitz
type: MusicGroup
description: Bruno Apitz (28 April 1900 – 7 April 1979) was a German writer and a survivor of the Buchenwald concentration camp. Life and career Apitz was born in Leipzig, as the twelfth child of a washerwoman. H
popularity: 16
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x900ee9707813ebf89aca439bede1013b19d74824544a08cca49cfc60cda1bc7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d079e40f-ae2d-4881-a9aa-b789a5691e1a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d079e40f-ae2d-4881-a9aa-b789a5691e1a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d079e40f-ae2d-4881-a9aa-b789a5691e1a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x900ee9707813ebf89aca439bede1013b19d74824544a08cca49cfc60cda1bc7f","name":"Bruno Apitz","registered_at":"2026-06-15T02:22:06Z","symbol":"NIM0651957","token_address":"0x27da4cc54264eee3b55fcbe1d08087c18683722e","type":"artist","uuid":"d079e40f-ae2d-4881-a9aa-b789a5691e1a"}
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 0x900ee9707813ebf89aca439bede1013b19d74824544a08cca49cfc60cda1bc7f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d079e40f-ae2d-4881-a9aa-b789a5691e1a.json and https://artists.proofprofile.net/proofs/artist/d079e40f-ae2d-4881-a9aa-b789a5691e1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x900ee9707813ebf89aca439bede1013b19d74824544a08cca49cfc60cda1bc7f","name":"Bruno Apitz","registered_at":"2026-06-15T02:22:06Z","symbol":"NIM0651957","token_address":"0x27da4cc54264eee3b55fcbe1d08087c18683722e","type":"artist","uuid":"d079e40f-ae2d-4881-a9aa-b789a5691e1a"}
album: Nackt unter Wölfen
  type: MusicAlbum
  date published: 2014-06-20