Evidence index
Primary docs, public wikis, repositories, talks, press writeups, and first-hand notes used to support badge pages.
Primary published circuit-documentation source for the FirstBuild project. It confirms that a schematic PDF is public but does not establish a native hardware source, complete BOM, final PCB fabrication, component availability, test results, power safety, regulatory status, or a reusable image license.
Primary root license for software and associated documentation, with 2026 copyright naming the DefCon 34 Badge Team, FirstBuild, and GE Appliances. It does not separately grant rights to the Phil Back credited artwork, repository image, logos, trademarks, or other event media.
Live public release surface checked on 2026-08-05, when no GitHub release or tag was exposed. This supports an explicit pre-event release/parity boundary rather than a claim that the visible repository commit was installed on physical badges.
Primary official-organization repository whose description calls it the firmware for the 2026 DefCon 34 Badge by FirstBuild. It establishes a current public event-associated badge project and source trail, not final quantity, availability, delivery, official DEF CON status, physical-badge parity, or reusable-image rights.
Primary project policy source saying the project is intended for source and firmware installed on physical badges, and describing tagged permanent releases with source, notices, objects, hashes, and installation material. It does not prove a badge giveaway, release publication, distribution count, completed manufacturing, or end-user safety.
Primary source for the implemented 240×416 3.7-inch passive black/white/yellow/red e-paper target profile.
Organizer-published source establishing the August 31-September 2, 2025 schedule chronology, Stockholm context, and Kulturhuset registration location.
Primary source for the participant-facing Friends Badge interface, image selection, dither preview, and write-to-badge UI path.
Primary source for raw, uncompressed, column-major bitmap output from the companion package.
Primary source for the NFC Forum Type 4/NfcA description and passive image-transfer protocol. It does not prove physical component choice, final event configuration, or every attendee's use.
Primary organizer-published, dated August 30, 2025 source associating the public app's Friends Badge editor, NFC configuration, e-ink conference-badge language, and write action with the imminent 2025 event.
Primary MIT-license source for the public package code only; it does not establish image reuse, event media, or badge-hardware rights.
Primary versioned companion-package source explicitly describing control of the Flutter & Friends e-ink conference badge and image writing over NFC during the event period.
Markdown source for the FREE-WILi documentation page, used to pin the exact prose behind hardware, software, sponsor, and image-rights decisions.
Commit-pinned public technical archive containing KiCad schematic/PCB, BOM, Gerbers, and platform software material. It does not establish a project-wide reuse license, final 2026 board revision, or attendee allocation.
Commit-pinned organization archive for a BSides SP 2026 REV. 0 MicroPython demo collection. The archive calls itself alpha/experimental and not production-ready, so it is not treated as proof of installed conference firmware.
Source repository for hardware designs, firmware, README, badge photo, BOM, and license evidence.
Source repository preserving ToorCon 13 badge hardware and firmware trees under the Project Ubertooth `tc13badge` code name.
Firmware-source evidence for the Renesas R5F212L4/R8C code archive and build context.
Hardware-source evidence for the GPL-licensed Project Ubertooth design files, KiCad schematic/layout, and two-layer PCB production notes.
Primary build-configuration source specifying the `ch32v` platform, `genericCH32V003F4U6` board, and `ch32v003fun` framework. It supports the firmware target claim but does not identify a final board configuration, programmer, flashing procedure, release artifact, source license, or production validation.
Primary implementation source for touch ADC initialization, PD2 touch reads, threshold-triggered `audio_start`, timer-driven sampled audio, and D/F/I/U plus display LED update outputs. It supports the described source behavior but not the exact public production audio, volume, mechanical touch surface, completed hardware build, functional reliability, accessibility, content licensing, or user-facing safety/support claims.
Primary implementation source for PFC161 headers, PA4/PA5 active-low LED outputs, individual LED registers, pseudo-random initialization, LFSR-derived delays, and two-channel flash logic. It supports the source-level light behavior but not final board artwork/wording, randomness properties, exact timing/brightness, functionality of every unit, content provenance, or user-facing safety/accessibility/support claims.
Primary implementation source for PFC161 headers, four-pixel RGB state buffers, blue/orange/off source patterns, 470 pF touch-capacitor note, touch baseline/threshold logic, and timer-driven LED output. It supports source-level touch/color behavior but not final hardware population, exact public color selection, every-unit functionality, host protocol, safety/accessibility, third-party-IP rights, or user-facing support claims.
Primary public firmware-tree source for PlatformIO configuration and the code/include/source layout. The reviewed root did not visibly expose a README, release, or explicit LICENSE/COPYING file, so it is evidence of a public development trail rather than a final supported/open-source product release.
Primary public hardware-tree source for a DFIU-named KiCad PCB, KiCad schematic, BOM/position CSVs, Gerbers, backups, and layout material. The reviewed root did not visibly expose an explicit LICENSE/COPYING file; its contents do not by themselves prove final population, fabrication, safety, compliance, shipment, or a license grant.
Primary public hardware-tree source for PFC161 datasheet material, KiCad front/full board and schematic files, BOM/position material, front/back/prototype Gerbers, and SAO-spacer models. The reviewed root did not visibly expose an explicit LICENSE/COPYING file; it does not alone prove final population, fabrication, electrical safety, host compatibility, delivery, or a license grant.
Primary public firmware-tree source for the Makefile, Easy PDK material, and PFC161-oriented C implementation. The reviewed root did not visibly expose a README, release, or explicit LICENSE/COPYING file, so it evidences a public development trail rather than a final supported/open-source product release.
Primary public hardware-tree source for PFC161/portal-gun directories, KiCad board and schematic/project material, BOM/position files, Gerbers, acrylic material, and backups. Its `dc33` repository name is a lineage clue, not direct proof of which earlier event/edition shipped, nor of 2026 board revision, fabrication, electrical safety, host compatibility, delivery, or a license grant.
Primary public firmware-tree source for a PFC161 build directory with Makefile, Easy PDK material, and C implementation. The reviewed root did not visibly expose a README, release, or explicit LICENSE/COPYING file, so it evidences a public development/reuse trail rather than a final supported/open-source product release.
License source for AGPLv3 terms applied to Proteus.
Source for ESP8266 client scope, PlatformIO build workflow, TECT/OTA update notes, SPIFFS flashing, module/mode architecture, three-button event handling, display manager, authorship, and AGPLv3 statement.
Public firmware repository for Proteus, described as firmware for the 2018 Area41 security conference badge.
Build-configuration source for espressif8266 Arduino framework, heltec_wifi_kit_8 board target, and declared libraries.
Primary repository license: MIT-style license, copyright 2026 Zach Dicklin, expressly covering project software, documentation, and hardware design files. It does not independently authorize DEF CON branding, clear third-party dependencies/media, establish manufacturer or organizer roles, or grant local publication rights for a chosen badge image.
Primary maker source for the project's title, wearable silent-disco framing, local-mix/audio/light/infrared interaction, stated components and source/fabrication trail, and Pikkolo Assembly credit. It establishes maker-published project claims, not DEF CON authorization, a ticket entitlement, silent-disco programming, completed event distribution, admission role, or reusable-image permission.
Primary maker firmware/revision document for rev-1/rev-2 behavioral and hardware-context distinctions. It does not supply a signed/tagged production release, source-to-device mapping, independent security review, support policy, event configuration, or evidence that every physical badge uses the documented state.
Primary versioned maker design document for the board's high-level RP2040, storage, power, audio, infrared, LED, and SAO architecture. It does not prove a complete/final production design, fabrication quantity, assembly inspection, electrical safety, compliance, tested compatibility, or matching physical unit.
Primary maintainer update stating the boards are fabricated, assembled, and playing music, and that every badge's silkscreened QR points to the repository. It supports only a source-publisher physical-run claim; it does not establish recipient allocation, handoff, quantity, final component/revision parity, organizer endorsement, event access, or an independent post-event report.
Public release page reviewed on 2026-08-05, reporting no releases. This establishes an untagged public source state rather than a production firmware archive or source-to-unit mapping.
Primary license source confirming MIT terms for the independently published Glyph app source only; it does not confer rights to reuse badge imagery or assert ownership of the event artifact.
Attributed post-event first-party app documentation stating that Glyph targets the Pimoroni Blinky 2350 badge handed out at Workday DevCon 2026 and describing the badgeware MicroPython runtime. It does not establish organizer policy, all-attendee allocation, an official event app bundle, or event-specific hardware parity.
Maker-published README for a two-piece 3D-printed capture ring intended to hold the DEF CON 34 badge at a chosen rotation. It says one STL is printed twice and combined with user-supplied hardware or zip ties and a dual-clip lanyard; the maker also says the geometry was derived photogrammetrically and is not an official DEF CON drawing. This source establishes an optional design proposal, not a verified fit, port orientation, electrical result, official accessory, production run, delivery, or image-reuse permission.
Primary maker-published operating guide for the ATtiny1616, 10 RGB pixels, 11 discrete LEDs, 50 animations, physical button, USERROW persistence, I2C address 0x50, rejected malformed raw writes, and separate GPIO behavior. The reviewed public root contains a README and images, not an identified firmware release, hardware archive, source license, or reusable image grant.
Public attendee code fork linked from the ESPlant writeup; used as source evidence for post-event LED-strip experimentation and participant reuse rather than official board design authority.
Public driver repository referenced by both the hardware README and writeup; used as source evidence for the Arduino-environment driver path rather than as image provenance.
Primary contributor source naming Nicholas Haltmeyer, Duncan Woodbury, Marco Casaroli, @blenster, @mothball, and @vrllrv with their project roles.
Primary badge documentation source for Pico 2 bundle/distribution language, display, controls, NeoPixels, accelerometer, SAO, SD, battery, differential protocol ports, MCP2518FD, injector behavior, Rust/Embassy firmware, Rhai scripting, and safety warnings.
Public repository source for the official MHV 2025 badge hardware, firmware, software, documentation, license, and contributor files.
Hardware-source repository preserving ToorCon 14 KiCad board/schematic files, assembly PDF, part list, schematic PDF, and GPL COPYING file.