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Zero-trust · at-home self-custody

Plebum Dominium

(PLAY-boom doh-MIN-ee-oom)

Absolute Ownership by the Common People

You obtain sovereignty with Bitcoin only by owning the keys. This guide will show you how to safely and privately create those keys.

They are born on Tails OS — The Amnesic Incognito Live System, a free, open-source USB Linux you download yourself. It boots, runs with the network off, and forgets the session on shutdown.

Casino dice. A 2-of-3 native SegWit wallet. Titanium plates in three places. Hardware signers are optional later — and only as multi-vendor tools, never as the birth of the key. Built so no company, firmware, or factory has to outlive you.

One minute

Keys on your own terms

A quiet introduction. Play it at home. Then open the presentation when you are ready to work.

0:00 / 1:00

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House rules

  • No photos of seeds, plates, or word-bearing screens.
  • No seed on a machine that had a network up in that session.
  • Never load two seeds in one Tails OS boot.
  • Do not create or unlock Persistent Storage on the Tails USB.
  • If a hash or signature fails, stop. Do not improvise.
  • Do not write words, xpubs, or txids on the print packet.
  • Hardware later is optional. If used, different vendors.

The custody stack

A key generated with sufficient entropy on Tails OS — the airgap — is the foundation. After that key exists, you may export it onto a trusted hardware wallet for signing.

Entropy5 casino d6, keep faces 1–4 (two fair bits), reroll 5–6
Offline OSTails OS USB (amnesic live Linux), networking Disabled every boot. Optional: radio-less laptop (Wi-Fi card removed).
CoordinatorSparrow Wallet (verified Linux .tar.gz)
Second checkElectrum + local Ian Coleman BIP39 HTML
Wallet2-of-3 native SegWit P2WSH, path m/48'/0'/0'/2'
BackupThree titanium stamp plates, one 24-word seed each
SplitThree distant locations. The descriptor is not a third seed.
Optional laterExport a finished seed onto hardware. Multi-vendor if more than one key.

How to use the kit

  1. 01

    Read this overview, then watch the 25-slide Plebum Dominium presentation.

  2. 02

    Print the packet (or the individual sheets) for the closed-door table.

  3. 03

    On a trusted online computer, download official Tails OS, Sparrow, Electrum, and Ian Coleman BIP39. Verify hashes and signatures. Copy only verified files to a clean data USB.

  4. 04

    Verify bip39_dice_converter.py against VERIFY.md before you run it. If the hash differs, stop.

  5. 05

    Work the checklist in order, with Tails OS networking off whenever a seed is in memory.

  6. 06

    Test with dust in and dust out. Move savings only after both rehearsals succeed.

  7. 07

    Stamp plates, restore at least one seed from metal, then split locations. Log places — never the words.

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