Doris Gercke
type: MusicGroup
description: Doris Gercke (; 7 February 1937 – 25 July 2025) was a German writer of novels, especially thrillers but also books for children and youth, and poetry. For some books, she used the pen name Mary-Jo Mor
popularity: 10
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75a9b982e5cb3503de7642859c2ab59260cfa38a00452e69f2d8f50f10c964dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x75a9b982e5cb3503de7642859c2ab59260cfa38a00452e69f2d8f50f10c964dd","name":"Doris Gercke","registered_at":"2026-06-21T00:34:37Z","symbol":"NIM1764807","token_address":"0x678383253bffc1721b93c636de8a71f94a5d2bc3","type":"artist","uuid":"cf8b9b5b-eee3-468c-b06a-367533046f8e"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a9b982e5cb3503de7642859c2ab59260cfa38a00452e69f2d8f50f10c964dd. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e.json and https://artists.proofprofile.net/proofs/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x75a9b982e5cb3503de7642859c2ab59260cfa38a00452e69f2d8f50f10c964dd","name":"Doris Gercke","registered_at":"2026-06-21T00:34:37Z","symbol":"NIM1764807","token_address":"0x678383253bffc1721b93c636de8a71f94a5d2bc3","type":"artist","uuid":"cf8b9b5b-eee3-468c-b06a-367533046f8e"}
album: Schlaf, Kindchen, schlaf. Ein Bella Block Krimi
  type: MusicAlbum
  date published: 2006
album: Die Nacht ist vorgedrungen
  type: MusicAlbum
  date published: 2021-04-19
album: Du musst hängen – Ein Fall für Bella Block
  type: MusicAlbum
  date published: 2024-11-01