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": "defcon-index-26-65dbc2bc9ee82c35",
  "title": "Welcome To DEF CON & Badge Maker Talk",
  "presenters": [

  ],
  "event": "DEF CON 26",
  "year": "2018",
  "source_url": "https://infocondb.org/con/def-con/def-con-26/welcome-to-def-con-badge-maker-talk",
  "source_kind": "Independent InfoconDB index",
  "source_file": "infocondb-def-con-26.html",
  "rights": "Metadata and source links only; abstracts, biographies, transcripts and media not republished",
  "delivery_status": "Not independently verified",
  "title_status": "source supplied",
  "presenter_status": "unknown in imported source",
  "media": [

  ],
  "provenance": [
    {
      "file": "infocondb-def-con-26.html",
      "url": "https://infocondb.org/con/def-con/def-con-26/",
      "source_kind": "secondary independent index",
      "sha256": "9095ab22d74c3b7051252f89b8f37a8a5c6ed8f2f06a460d59c8ef9c0aaac42d",
      "checked": "2026-10-16T03:48:29Z"
    }
  ]
}