Ultimate Protocol v3.2

A complete, step-by-step guide to a layered Bitcoin self-custody setup: hot, warm and cold, with every wallet derived and backed up in a consistent way.

What’s inside

Architecture: Ashigaru as the hot wallet, a Satochip card with BitcoinKeeper as the warm wallet, and a 2-of-3 multisig cold wallet (ColdCard Q, OneKey 1S, Keyshell) coordinated with Specter or Sparrow. BIP-85 child seeds: one dice-generated parent seed on the ColdCard, with one child per wallet and a clear index map. Lose a phone, not your stack. Lightning, with honest trade-offs: Phoenix (a single channel with ACINQ, who sees your payments) and Bull Bitcoin Mobile (L-BTC swaps, the Liquid federation, what Liquid hides and what it doesn’t). Backups: what goes into your Seedkeepers, a ready-to-fill index card, and geographic separation rules. Verification: mandatory recovery tests before you deposit real funds.

Format: PDF, A4, 14 pages. English. SHA-256 published on this page.

Who it’s for: bitcoiners who already hold their own keys and want a coherent, documented system rather than a pile of wallets.

Educational guide, not financial advice. Always verify firmware and test your recoveries.

trust none · verify everything