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-f6c9f293-934d-4505-8a14-f85870e3d746",
  "title": "Analog rotary phones get a second life with raspberry pi",
  "presenters": [
    "Hans Gelke"
  ],
  "event": "37C3: Unlocked",
  "year": "2023",
  "source_url": "https://media.ccc.de/v/37c3-11716-analog_rotary_phones_get_a_second_life_with_raspberry_pi",
  "source_kind": "CCC recording catalog",
  "source_file": "ccc-37c3.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/37c3-11716-analog_rotary_phones_get_a_second_life_with_raspberry_pi"
    }
  ],
  "provenance": [
    {
      "event": "37c3",
      "title": "37C3: Unlocked",
      "source": "https://api.media.ccc.de/public/conferences/37c3",
      "file": "ccc-37c3.json",
      "sha256": "55ec6d05e5355a2916dc2381fd6a25aed2355d1bd6422b4849717f224111f222",
      "checked": "2026-10-16T03:45:19Z",
      "source_records": 140
    }
  ],
  "source_guid": "f6c9f293-934d-4505-8a14-f85870e3d746",
  "source_event_api": "https://api.media.ccc.de/public/events/f6c9f293-934d-4505-8a14-f85870e3d746",
  "date": "2023-12-30T12:55:00.000+01:00",
  "duration_seconds": 2526,
  "language": "eng",
  "tags": [
    "37c3",
    "11716",
    "2023",
    "Hardware & Making",
    ""
  ],
  "event_acronym": "37c3",
  "source_schedule_url": ""
}