DragonX

<p align="center">
  <img src="doc/dragonx/logo_dragonx_128.png" alt="DragonX" width="128">
</p>
<h1 align="center">DragonX</h1>
<p align="center"><b>A fully-private, RandomX CPU-mineable cryptocurrency.</b></p>

<h3 align="center">

| Introduction | Build | Run | Mine |
| :---: | :---: | :---: | :---: |
| [What is DragonX?](#what-is-dragonx) | [Build from source](#build-from-source) | [Run a node](#running-a-node) | [CPU mining](#cpu-mining-randomx) |
| [Key facts](#key-facts) | [Install a release](#installing-dragonx-binaries) | [Fastest sync](#fastest-way-to-sync-bootstrap) | [Wallets](#wallets) |

</h3>

# What is DragonX?

DragonX implements extreme privacy via blockchain technology. It is **private from
genesis**: every ordinary transaction is shielded (`z2z`), so your transaction metadata
stays private. DragonX is based on Bitcoin code with Zcash's zero-knowledge Sapling
cryptography, and its defining feature is **RandomX Proof-of-Work — it is mined with a
CPU**, not ASICs or GPUs.

DragonX has its own genesis block. Its lineage is Bitcoin → Zcash → Komodo → Hush → DragonX;
it is a fork of the [Hush](https://git.hush.is/hush/hush3) full node, with the Proof-of-Work
changed from Equihash to RandomX and privacy enforced from the very first block.

This software is the DragonX full node and command-line client. It downloads and stores the
entire history of DragonX transactions; depending on your computer and network connection
this can take a while, so most users start from the [bootstrap snapshot](#fastest-way-to-sync-bootstrap).

**DragonX is experimental software.** Use at your own risk, just like Bitcoin.

# Key facts

| | |
| --- | --- |
| Ticker | **DRAGONX** |
| Proof-of-Work | **RandomX** (CPU-mineable) |
| Privacy | fully private from genesis (`ac_private=1`, Sapling active at height 1) |
| Block time | 36 seconds |
| Block reward | 3 DRAGONX, halving every 3,500,000 blocks |
| Max block size | 4 MB |
| RPC port | 21769 |
| P2P port | 18030 |
| Data directory | `~/.hush/DRAGONX` (Linux) |
| Config file | `DRAGONX.conf` |
| Binaries | `dragonxd`, `dragonx-cli`, `dragonx-tx` |

# Fastest way to sync (bootstrap)

The quickest way to get a fully-synced node is the signed bootstrap snapshot, which
installs a pre-built blockchain so you skip re-validating the whole chain from genesis:

```sh
# Stop dragonxd first if it is running, then:
./util/bootstrap-dragonx.sh
```

The script preserves your `wallet.dat` and `DRAGONX.conf`, verifies the download's
checksums and (once a release key is published) its cryptographic signature, then starts
you near the chain tip. If you prefer to sync from the network instead, a larger
`-dbcache` (e.g. `-dbcache=2048`) noticeably speeds up the initial block download.

# Build from source

Building uses 3 build processes by default; you need ~2GB of RAM for each.

### Debian or Ubuntu

```sh
sudo apt-get install build-essential pkg-config libc6-dev m4 g++-multilib \
      autoconf libtool ncurses-dev unzip git zlib1g-dev wget \
      bsdmainutils automake curl unzip nano libsodium-dev cmake
git clone https://git.dragonx.is/DragonX/dragonx
cd dragonx
./build.sh -j3
```

### Arch

```sh
sudo pacman -S gcc libsodium lib32-zlib unzip wget git python rust curl autoconf cmake
git clone https://git.dragonx.is/DragonX/dragonx
cd dragonx
./build.sh -j3
```

### Fedora

```sh
sudo dnf install make automake gcc gcc-c++ kernel-devel cmake libtool ncurses-devel patch -y
git clone https://git.dragonx.is/DragonX/dragonx
cd dragonx
./build.sh -j3
```

### macOS

Install Xcode Command Line Tools and [Homebrew](https://brew.sh/), then:

```sh
xcode-select --install
brew install gcc autoconf automake pkgconf libtool cmake curl

# Install Rust (needed for librustzcash on macOS Sequoia+)
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source "$HOME/.cargo/env"

git clone https://git.dragonx.is/DragonX/dragonx
cd dragonx
# Make sure libtool gnubin and cargo are on PATH
export PATH="$HOME/.cargo/bin:/usr/local/opt/libtool/libexec/gnubin:$PATH"
./build.sh -j3
```

For a release build:

```sh
export PATH="$HOME/.cargo/bin:/usr/local/opt/libtool/libexec/gnubin:$PATH"
./build.sh --mac-release -j$(sysctl -n hw.ncpu)
```

### Windows (cross-compiled on Linux)

```sh
sudo apt-get install \
      build-essential pkg-config libc6-dev m4 g++-multilib libdb++-dev \
      autoconf libtool ncurses-dev unzip git zip \
      zlib1g-dev wget bsdmainutils automake mingw-w64 cmake libsodium-dev
git clone https://git.dragonx.is/DragonX/dragonx
cd dragonx
./util/build-win.sh -j$(nproc)
```

### ARM (Raspberry Pi)

Any ARMv7 machine cannot build this repo because the underlying zk-SNARK library does not
support that instruction set. You need an ARMv8-based board (Raspberry Pi 4 or newer). Either
install an `aarch64` release package (see below) or cross-compile from amd64.

# Installing DragonX binaries

1. [Download a release](https://git.dragonx.is/DragonX/dragonx/releases) with a `.deb` extension.
1. Install it, substituting the version you downloaded:
   `sudo dpkg -i dragonx-VERSION-amd64.deb` (or `-aarch64.deb` on ARM).
1. Run with: `dragonxd`.

# Running a node

Start the daemon:

```sh
./src/dragonxd
```

It stores data in `~/.hush/DRAGONX` and reads `~/.hush/DRAGONX/DRAGONX.conf`. Query it with
`./src/dragonx-cli`, for example:

```sh
./src/dragonx-cli getinfo
```

To run DragonX as a background service, see [doc/dragonxd-systemd.md](doc/dragonxd-systemd.md).

# CPU mining (RandomX)

DragonX is CPU-mineable via RandomX (the same algorithm family as Monero); ASICs and GPUs do
not apply. To mine with your node, enable generation and choose how many threads to use:

```sh
# mine with 4 CPU threads
./src/dragonxd -gen=1 -genproclimit=4
```

or add to `DRAGONX.conf`:

```
gen=1
genproclimit=4
```

Mining rewards arrive as transparent coinbase, which is directly spendable; you can optionally
move it into the shielded pool with `z_shieldcoinbase` (see
[doc/shield-coinbase.md](doc/shield-coinbase.md)). For more on the algorithm and its tuning
options, see [doc/randomx.md](doc/randomx.md).

# Wallets

The DragonX full node includes a built-in wallet, managed via `dragonx-cli` (see
[doc/wallet-backup.md](doc/wallet-backup.md) and [doc/seed-phrase.md](doc/seed-phrase.md)).

Graphical and mobile wallets:

* **[ObsidianDragon](https://git.dragonx.is/DragonX/ObsidianDragon/releases)** — desktop wallet, available in both full-node and light-wallet modes.
* **[SilentDragonXAndroid](https://git.dragonx.is/DragonX/SilentDragonXAndroid/releases)** — wallet for Android devices.

DragonX light and mobile wallets use BIP39 seed phrases that are compatible with the full
node — see [doc/seed-phrase.md](doc/seed-phrase.md).

# Support and links

* Website: https://dragonx.is
* Source code: https://git.dragonx.is/DragonX
* Block explorer: https://explorer.dragonx.is
* Issues / bounties: https://git.dragonx.is/DragonX/dragonx/issues
* Telegram: https://dragonx.is/tg
* Matrix: https://dragonx.is/matrix
* Twitter / X: https://twitter.com/DragonXchain

# License

For license information see the file [COPYING](COPYING).