Issue dossier
The DEF CON 23 image uses a 00:09:56 frame from the CC BY 3.0 TIB AV-Portal / DEF CON recording `DT and 1057 - Welcome to DEF CON`, cropped to the talk-slide collage of real vinyl record badge variants.
A linkable camp-impact record with badge context, severity, evidence confidence, and source notes.
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image provenance · source-backed · licensed video-frame replacement applied
The entry now has a rights-cleared documentary video-frame derivative while continuing to avoid The Register, Hackaday, writeup, attendee, social-media, generated, and placeholder imagery.
- Badge
- DEF CON 23 Badge
- Category
- image provenance
- Severity
- note
- Confidence
- source-backed
- Status
- licensed video-frame replacement applied
- Timeframe
- 2026 image replacement pass
- Source note
- TIB AV-Portal media 36360 license metadata and badge.gallery image policy.
article
Contemporary article documenting LostboY / Ryan Clarke authorship, playable vinyl record format, role-color variants, secret alphabets, inner-groove markings, and analog puzzle clues.
Badge: DEF CON 23 Badge
article
Later puzzle-analysis source using DEF CON 23 as an example of lanyard-based Nyctograph and Gold Bug enciphered secret messages.
Badge: DEF CON 23 Badge
article
Contemporary Hackaday source documenting the 7-inch vinyl record badge, non-electronic alternation context, collaborative badge-hacking effort, and early puzzle hunt.
Badge: DEF CON 23 Badge
event page
Official DEF CON archive source for 2015 event context, conference material links, contest framing, and post-event archive records.
Badge: DEF CON 23 Badge
licensed talk video
TIB AV-Portal recording with CC BY 3.0 license metadata, DEF CON publisher metadata, and a badge-talk slide showing the DEF CON 23 vinyl record badge variants at 00:09:56.
Badge: DEF CON 23 Badge
writeup
Public challenge writeup documenting six lanyards, Nyctograph and Gold Bug cipher use, badge text, lanyard translations, key cards, and solution flow.
Badge: DEF CON 23 Badge
DEF CON · retrieved 2026-05-15
Official event archive source for DEF CON 23 context, conference materials, contest links, and post-event archive records.
Badge: DEF CON 23 Badge
Elegin / Team Potato · retrieved 2026-05-15
Challenge writeup source for lanyard ciphers, Nyctograph and Gold Bug alphabets, lanyard translations, key-card clues, and solution flow.
Badge: DEF CON 23 Badge
Hackaday · retrieved 2026-05-15
Contemporary source for 7-inch vinyl record badge format, non-electronic badge-year framing, and collaborative badge-hacking context.
Badge: DEF CON 23 Badge
Help Net Security · retrieved 2026-05-15
Later secondary source for DEF CON 23's six lanyards and Nyctograph / Gold Bug enciphered-message role in the badge challenge.
Badge: DEF CON 23 Badge
TIB AV-Portal / DEF CON · retrieved 2026-05-15
CC BY 3.0 licensed video source for the DEF CON 23 opening and badge talk; a 00:09:56 frame is used only for image provenance after cropping to the talk-slide vinyl record badge collage.
Badge: DEF CON 23 Badge
The Register · retrieved 2026-05-15
Contemporary source for LostboY / Ryan Clarke authorship, playable vinyl record format, role-color variants, secret alphabet text, inner-groove markings, and analog puzzle surface.
Badge: DEF CON 23 Badge