Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Version 0.1.2 · 2026-10-21

Download Ark-0 Wallet

Ark-0 Wallet is a wallet for the Ark-0 test network that you install on Windows, macOS, Linux or Android. Its keys come from 24 recovery words and stay on your device, encrypted with your password. It asks both wallet.ark0.si and wallet2.ark0.si for balances and the state of transactions and compares the two answers; a payment is final after 6 blocks, once the wallet has checked those blocks' signatures itself.

Release notes on GitHubSource code

Choose your system

Windows

Windows 10 or 11, 64-bit

Download .exe

ark0-wallet-0.1.2-windows-x64-setup.exe4.6 MB

SHA-2569a9af0766d1a435409fb5c79912819db8aa8fc3dc3e415cfe1586399e20d4c6e

The installer is not code-signed, so Windows may say "Windows protected your PC": click "More info", then "Run anyway".

macOS

macOS 10.15 or later, Apple silicon or Intel

Download .dmg

ark0-wallet-0.1.2-macos-universal.dmg10.7 MB

SHA-256ef70c6e9ede2ba81215e7af4f788f0a0b64a6aced214e0d4991af5800ca616d5

Open the disk image and drag the wallet into Applications. It is not code-signed: when macOS refuses to open it, go to System Settings, Privacy & Security (on macOS 12 or earlier, System Preferences, Security & Privacy), click "Open Anyway" and confirm.

Linux

64-bit, Intel or AMD (x86_64)

Download .deb

ark0-wallet_0.1.2_amd64.deb6.1 MB

SHA-256bd0e74796af651cc1b3e11f747a226e2da8e245b9cb3d52be119162f3d1f72d0

For Ubuntu 22.04, Debian 12 or later: in the download folder, run sudo apt install ./ark0-wallet_0.1.2_amd64.deb.

Download AppImage

ark0-wallet_0.1.2_amd64.AppImage84.3 MB

SHA-2567c60c4294c97269361cdb0d075266f1239e59ecb58df7877cda7c0f7f5fda8d2

For other distributions: make it executable with chmod +x ark0-wallet_0.1.2_amd64.AppImage, then run it.

Android

Android 7.0 or later, on a 64-bit phone

Download .apk

ark0-wallet-0.1.2-android.apk23.8 MB

SHA-25648a6256aad9ebd81d67ea4b188d8038e7d15edb5a789ede5bf0776d46025a7ef

Open the file and, when asked, allow your browser or file manager to install apps. The app is signed with the certificate below; later versions are signed with the same one.

Signing certificate, SHA-256

d849cf62533956e0e682ac0047a55eca9c8f5e8d885320ff78f87829842f644f

Check the file before you install it

SHA256SUMS lists the SHA-256 of every file of the release and is signed with the Ark-0 release key, the key that signs the node releases too. The hashes on this page are copied from it. On a system set to another language, gpg and sha256sum may print the messages quoted below in that language.

  1. Download SHA256SUMS, SHA256SUMS.asc and the release key, release-signing-key.asc, into the folder that holds your file.
  2. Check the signature with gpg (on Windows it comes with Gpg4win, on a Mac with GnuPG from Homebrew, on Linux with the gnupg package):
    gpg --import release-signing-key.asc
gpg --verify SHA256SUMS.asc SHA256SUMS
    It should say Good signature from "Ark-0 release signing key (duncan0k) <dev@ark0.si>", with the fingerprint shown below. A warning that the key is not certified with a trusted signature only means that you have not certified it yourself.
  3. Then check your file against the list. On Linux, sha256sum --ignore-missing -c SHA256SUMS prints OK after your file's name. On a Mac, shasum -a 256 FILE in Terminal, and on Windows, Get-FileHash FILE in PowerShell, print its SHA-256 (PowerShell in capital letters): it must be the one in SHA256SUMS, which is also the one on this page.

For the Android app, apksigner verify --print-certs ark0-wallet-0.1.2-android.apk, from the Android SDK build tools, prints the SHA-256 of its certificate, which must be the one above.

Fingerprint of the release key

025D 989B 68FF 923F 8EF6 9D4B 28F6 5A19 58A2 361A

After installing

Open the wallet and create a new wallet, then write its 24 recovery words down on paper. Or choose "Restore a wallet" and enter your words, or paste a backup code of the web wallet: you get back the addresses that web wallet had. Test coins come from the faucet.

Recovery words are like a backup code: whoever has them can move the wallet's coins, and we will never ask for them. They work in Ark-0 Wallet alone; other wallets do not derive the same keys from them. Ark-0 Wallet is experimental software and has not been audited by a third party.

Other ways in