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-cface55d-a792-55e0-9eda-d2e4a72b43fb",
  "title": "FF-ESP32-OpenMPPT - New Freifunk-ISEMS-MPPT-Solar-Controller with integrated WiFi",
  "presenters": [
    "Elektra Wagenrad"
  ],
  "event": "36C3: Resource Exhaustion",
  "year": "2019",
  "source_url": "https://media.ccc.de/v/36c3-oio-166-ff-esp32-openmppt-new-freifunk-isems-mppt-solar-controller-with-integrated-wifi",
  "source_kind": "CCC recording catalog",
  "source_file": "ccc-36c3.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/36c3-oio-166-ff-esp32-openmppt-new-freifunk-isems-mppt-solar-controller-with-integrated-wifi"
    }
  ],
  "provenance": [
    {
      "event": "36c3",
      "title": "36C3: Resource Exhaustion",
      "source": "https://api.media.ccc.de/public/conferences/36c3",
      "file": "ccc-36c3.json",
      "sha256": "aee783f811c44cb053917e1d7770a06ba5bf68247a9e4c7a9cdfa44ae26f3598",
      "checked": "2026-10-16T03:45:15Z",
      "source_records": 269
    }
  ],
  "source_guid": "cface55d-a792-55e0-9eda-d2e4a72b43fb",
  "source_event_api": "https://api.media.ccc.de/public/events/cface55d-a792-55e0-9eda-d2e4a72b43fb",
  "date": "2019-12-28T16:10:00.000+01:00",
  "duration_seconds": 1007,
  "language": "eng",
  "tags": [
    "36c3-oio",
    "166",
    "2019",
    "Hardware & Making",
    "OpenInfrastructureOrbit"
  ],
  "event_acronym": "36c3",
  "source_schedule_url": ""
}