Skip to main content

Trust Don't Verify — On Self Custody & Entropy (Meetup #50)

Date: 2026-08-13
Presenter: RRBTC
Topics: custody, entropy, diy signing devices, inheritance

Deck: SpeakerDeck
Slides: /img/slides/2026-09-07-self-custody-and-entropy-meetup-50/slide_000.jpg … slide_035.jpg


Outline & Notes

Community discussion on self-custody tradeoffs and entropy, framed by the July 30 incident as a reminder of the cost of custody mistakes. Covers custody models, seed generation and storage, and DIY signing devices.

DIY Signing Devices Covered

  • Krux — open-source firmware for off-the-shelf microcontrollers
  • SeedSigner — Raspberry Pi Zero-based air-gapped signer
  • Jade DIY — Blockstream Jade firmware on generic hardware
  • Specter DIY — Specter DIY air-gapped hardware wallet

Slides


Resources