Offline Entropy Manual

org.dergigi.offlineentropymanual
by Gigi dergigi.com

Offline guides for generating Bitcoin seed entropy with dice, coins, and cards

Offline Entropy Manual ships printable entropy / seed backup guides as PDFs so you can create BIP39 entropy without relying on a website or a phone app for randomness. Pick what you have at hand (dice, coins, playing cards, D8/D16, or a printer and scissors), follow the matching guide, and keep your seed offline. The last word of a BIP39 seed (12th or 24th) is a checksum. This app does not calculate it. Finish that step on a hardware wallet or another airgapped device you trust. Never enter your seed into a website or a normal phone app. Bundled documents keep their original authors' terms; app code is MIT.

First release: Aug 13, 2026, 10 total releases.

Most recent release: Aug 21, 2026.

Website Repo

Appears in 1 app stack.

0 sats / 0 zaps received in the past year.

Sats Received

Underlying data available via MCP: app_zaps, app_releases.

Zap Count

Underlying data available via MCP: app_zaps, app_releases.

Releases

  • Aug 21, 2026 1.6.1
    ### Added - README screenshots of home, Diceware lookup, and Seed Picker Solitaire. ### Fixed - Crop the Android gesture bar off listing screenshots.
  • Aug 21, 2026 1.6.0
    ### Added - Zapstore listing screenshots (status bar cropped). - About page link to open a new GitHub issue.
  • Aug 14, 2026 1.5.0
    ### Added - About credits Survival Manual as inspiration, with a link to the project. - Home "What is entropy?" blurb with a Learn more screen. - BIP39 seed phrase on that screen opens the bundled cut-out BIP39 word list PDF. - Airgapped device on that screen opens the BIP39 tool checklist.
  • Aug 14, 2026 1.4.0
    ### Added - Settings screen (Survival Manual style): Day/Night theme (Day, Night, Dark Night, System) and text size (Tiny through Huge). ### Fixed - Make the 3-2-1 backup rule look like a link (underlined, same warning red) in the warning list. - Distinguish Night (charcoal) from Dark Night (true black) themes.
  • Aug 14, 2026 1.3.0
    ### Added - Screen explaining the 3-2-1 backup rule, linked from the warning list. - Per-source license label (and link when known) next to website / source PDF. - Print action for bundled PDFs (viewer toolbar and overflow menu). ### Changed - README, About, and Zapstore copy note that a hardware wallet or airgapped device is needed for the BIP39 checksum word. - Warning list: consider the 3-2-1 backup rule.
    More…
    - Launcher icon uses precomposed mipmaps (Survival Manual style) instead of a circular adaptive mask. - App drawer label is `Entropy Manual`.
  • Aug 13, 2026 1.2.2
    ### Added - Before you begin checks on the printer and scissors path (bowl, mix, replace slips, remix after each draw). ### Fixed - Zapstore publish uses `zapstore.yaml` so Keep a Changelog release notes are included (bare APK publish showed "No notes"). - Hide the BIP39 (bitcoin/bips) author line on the printer and scissors path.
  • Aug 13, 2026 1.2.1
    ### Fixed - Built-in PDF viewer page fill so documents stay readable in dark mode. - Built-in PDF viewer scrolling (pinch-zoom was eating scroll gestures).
  • Aug 13, 2026 1.2.0
    ### Added - README banner image. ### Changed - App launcher icon to the notebook artwork (transparent foreground on dark green). - Path screens no longer repeat the subtitle above Before you begin. - Path screens order footer as Warning, Checksum, then Sources.
    More…
    ### Fixed - Point Zapstore at `CHANGELOG.md` via `release_notes` so releases show notes instead of "No notes".
  • Aug 13, 2026 1.1.0
    ### Added - Overflow menu on document list items to open the source website, online PDF, or another app without entering the in-app viewer. - Share action on document overflow menus. ### Changed - Put "Open in another app" first in the document overflow menu. ### Fixed
    More…
    - D8 path icon in dark mode by replacing the light-filled PNG with a tintable vector.
  • Aug 13, 2026 1.0.0