Issue dossier
The published DEF CON 20 image is a WebP crop from Sephiroth storm's CC BY-SA 4.0 Wikimedia Commons documentary photo of multiple DEF CON badges.
A linkable camp-impact record with badge context, severity, evidence confidence, and source notes.
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image provenance · source-backed · licensed original replacement applied
The catalogue can show a real DEF CON 20 badge image while preserving the full source original and avoiding Parallax forum images, WIRED gallery images, generated art, or uncleared archive photos.
- Badge
- DEF CON 20 Badge
- Category
- image provenance
- Severity
- note
- Confidence
- source-backed
- Status
- licensed original replacement applied
- Timeframe
- current catalogue build
- Source note
- Wikimedia Commons File:DefCon Badges.jpg metadata and badge.gallery image policy.
article
Contemporary article documenting Ryan Clarke's design goals, embedded game, cryptography, badge variants, IR interactions, free/open software, VGA expansion, and secret-society story.
Badge: DEF CON 20 Badge
event page
Official DEF CON source for July 26-29, 2012 Rio Hotel event context, badge firmware notice, conference DVD material, and badge-contest writeup links.
Badge: DEF CON 20 Badge
hardware and firmware archive
Primary manufacturer source for Propeller P8X32A hardware, IR, LEDs, USB, attendee-role variants, firmware downloads, schematic, VGA/PS2 examples, and designer/code credits.
Badge: DEF CON 20 Badge
licensed photo
Wikimedia Commons source for Sephiroth storm's CC BY-SA 4.0 documentary photo containing the DEF CON 20 Human badge among multiple DEF CON artifacts.
Badge: DEF CON 20 Badge
talk record
InfoconDB metadata for the DEF CON 20 badge talk, Jeff Moss presenter credit, and Ryan Clarke / LosT badge-designer credit.
Badge: DEF CON 20 Badge
DEF CON · retrieved 2026-05-15
Official event source for dates, venue, badge firmware availability, conference DVD badge materials, and badge-contest writeup links.
Badge: DEF CON 20 Badge
InfoconDB · retrieved 2026-05-15
Talk metadata source for DEF CON 20 badge presentation context and Jeff Moss / Ryan Clarke presenter attribution.
Badge: DEF CON 20 Badge
Parallax Forums · retrieved 2026-05-15
Primary manufacturer source for Propeller P8X32A, IR badge communication, LEDs, USB, role variants, Human badge shapes, firmware artifacts, VGA/PS2 expansion, and named contributors.
Badge: DEF CON 20 Badge
WIRED · retrieved 2026-05-15
Contemporary source for Ryan Clarke design context, embedded game, crypto/puzzle goals, badge-type roles, IR interactions, programming-language support, VGA expansion, and secret-society lore.
Badge: DEF CON 20 Badge
Wikimedia Commons · retrieved 2026-05-15
CC BY-SA 4.0 documentary photo source by Sephiroth storm showing multiple DEF CON badges, including the DEF CON 20 Human badge; used for image provenance, not hardware specification.
Badge: DEF CON 20 Badge