Add-on dossier
Bare-metal UART puzzle and performance/security claims
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
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maker-described software and protocol surface
The product and maker post describe bare-metal/pure RISC-V assembly on CH32V003 and a custom UART puzzle at 115200 baud; the product describes fourteen stages, Davies-Meyer, SPECK-128/256, a constant-time MAC, and an 8 MHz low-power mode. These claims do not substitute for matching released firmware, binaries, build or flash instructions, test vectors, benchmark method, security review, recovery process, or proof that any shipped unit matches the description.
- Badge
- Ouroboros Badge (DEF CON 34)
- Type
- maker-described software and protocol surface
- Status
- source claims; independent validation not found
- Compatibility
- Ouroboros Badge (DEF CON 34)
- Source
- https://www.tindie.com/products/mytechnotalent/ouroboros-badge-badgelife/
Badge context
Related Resources
first-party K Badges Tindie product listing
Maker-controlled product page for the $29.99 August 4, 2026 out-of-stock snapshot, tentative new-order/DEF CON statement, CH32V003, bare-metal RISC-V-assembly, UART-game, 12-LED Charlieplex, circular single-layer exposed-board, two-AA, and maker-described cryptographic/performance claims. Its product media has no stated reusable license or explicit permission basis.
Badge: Ouroboros Badge (DEF CON 34)
first-person maker announcement
Public r/Defcon post in which Material_Opinion_321 says they created Ouroboros as a CH32V003 pure-RISC-V-assembler project with a custom UART game, links the Tindie listing and technical explainer, and describes possible buyer-arranged DEF CON pickup. It does not establish a completed sale, delivery, official event relationship, access role, or reuse rights in Reddit media.
Badge: Ouroboros Badge (DEF CON 34)
maker-linked adjacent AVR framework repository
Maker-linked GitHub repository whose description identifies a bare-metal cryptographic authentication framework in AVR assembly for an ATmega328P. It is not a released CH32V003 Ouroboros Badge firmware or board package; GitHub's license field is Other, so it is not treated as a clear reusable source, hardware, documentation, or image license.
Badge: Ouroboros Badge (DEF CON 34)
maker-linked technical explainer PDF
Maker-linked GitHub PDF named by the product page as a How It Works explainer. Its presence supports a public explanatory trail but does not itself publish a matching CH32V003 firmware or hardware release, grant reusable image rights, or supply a software or hardware license.
Badge: Ouroboros Badge (DEF CON 34)
Source trail
Evidence Sources
K Badges / mytechnotalent via Tindie · retrieved 2026-05-15
Primary maker/seller source for the August 4, 2026 $29.99 out-of-stock state, tentative new-order/DEF CON hope, CH32V003, 12-LED Charlieplex matrix, circular exposed single-layer PCB, two-AA configuration, bare-metal RISC-V-assembly, 115200-baud game, and seller-described cryptographic/performance claims. It does not verify those claims, establish stock or fulfillment, publish a complete hardware or firmware release, grant image rights, or establish official DEF CON status.
Badge: Ouroboros Badge (DEF CON 34)
Material_Opinion_321 via r/Defcon · retrieved 2026-05-15
First-person maker announcement saying the author created Ouroboros as a CH32V003 pure-RISC-V-assembler project with a custom UART game. It links the product and explainer and describes buyer-arranged DEF CON pickup intent, but not completed production, transfer, venue authorization, official issuance, admission, or reuse permission for its media.
Badge: Ouroboros Badge (DEF CON 34)
mytechnotalent via GitHub · retrieved 2026-05-15
Public PDF that the product page links as Ouroboros technical explanation. It corroborates a maker-published explanatory artifact, not a released matching CH32V003 firmware, binary, build/flash workflow, hardware package, security review, license, or image-reuse grant.
Badge: Ouroboros Badge (DEF CON 34)
mytechnotalent via GitHub · retrieved 2026-05-15
Maker-linked repository described as a bare-metal cryptographic authentication framework in pure AVR assembly for an ATmega328P. GitHub labels its license field Other. This is recorded as an adjacent framework boundary, not evidence that the CH32V003 badge firmware or board files are released, reproducible, security-reviewed, or openly licensed.
Badge: Ouroboros Badge (DEF CON 34)