CONFERENCE METADATA — incomplete historical coverage; source presence is not proof of delivery.
Research dataset: Lukas Walter, Clemens Sauerwein, Daniel Woods, InfoSec.pptx, https://doi.org/10.5281/zenodo.15989593, CC BY 4.0 https://creativecommons.org/licenses/by/4.0/. Changes: metadata extraction, exact-match reconciliation and uncertainty flags. No endorsement implied.

{
  "id": "ccc-76a5de4e-6952-5566-b163-2839687f8ee6",
  "title": "Knock knock, who’s there?",
  "presenters": [
    "Jeroen"
  ],
  "event": "May Contain Hackers 2022",
  "year": "2022",
  "source_url": "https://media.ccc.de/v/mch2022-177-knock-knock-who-s-there-is-your-door-locked-are-you-sure-",
  "source_kind": "CCC recording catalog",
  "source_file": "ccc-MCH2022.json",
  "rights": "Metadata and source links only; abstracts, biographies, transcripts and media not republished",
  "delivery_status": "Not independently verified",
  "title_status": "source supplied",
  "presenter_status": "source supplied",
  "media": [
    {
      "kind": "recording page",
      "url": "https://media.ccc.de/v/mch2022-177-knock-knock-who-s-there-is-your-door-locked-are-you-sure-"
    }
  ],
  "provenance": [
    {
      "event": "MCH2022",
      "title": "May Contain Hackers 2022",
      "source": "https://api.media.ccc.de/public/conferences/MCH2022",
      "file": "ccc-MCH2022.json",
      "sha256": "a91a4ec8e7fde1d7ebfd71e461ab7276ce953c0c9b2c73a58b4d06499a136f10",
      "checked": "2026-10-16T03:45:30Z",
      "source_records": 133
    }
  ],
  "source_guid": "76a5de4e-6952-5566-b163-2839687f8ee6",
  "source_event_api": "https://api.media.ccc.de/public/events/76a5de4e-6952-5566-b163-2839687f8ee6",
  "date": "2022-07-25T22:00:00.000+02:00",
  "duration_seconds": 1356,
  "language": "eng",
  "tags": [
    "mch2022",
    "177",
    "2022",
    "MCH2022 Curated content"
  ],
  "event_acronym": "MCH2022",
  "source_schedule_url": "https://program.mch2022.org/mch2022/schedule/export/schedule.xml"
}