[ANN] Orange (OAG) | RandomX CPU-only | No premine | Solo mining

Orange (OAG)
A small CPU-mined UTXO coin. RandomX proof of work, written in Rust.

What this is
Orange is a plain UTXO blockchain: no smart contracts, no script language, no privacy features. It is a hobby project by one university student in Japan. Mainnet has been running since September 2026 with very few participants, and I am looking for people who will mine it and run nodes.

What this is not

There is no exchange listing and no price. You mine it and hold it.
There is no ICO, no premine and no developer reward. I mine under the same rules as everyone else.
I am not selling anything and I will never ask you for money.

Specifications

Proof of work	RandomX (CPU)
Accounting	UTXO
Signatures	Schnorr / BIP340 (secp256k1)
Block time	60 seconds
Difficulty	LWMA, every block
Block reward	10 OAG, flat, no halving
Max supply	1,000,000,000 OAG (emission ends after about 190 years)
Premine	0 (the 10 OAG in the genesis block is unspendable)
Genesis	2026-09-01 00:00 UTC
P2P port	9444

Solo mining only
There is no pool protocol. The miner is built into the node, so everyone who mines is also running a full node. That is on purpose: with so few participants, every miner is also someone keeping the network alive.

How to start (Windows)
1. Download orange-windows-x86_64.zip from the latest release and unpack it.
2. Check the file (compare with the .sha256 next to it):

Code:

Get-FileHash orange-windows-x86_64.zip -Algorithm SHA256

3. Create a wallet. It asks for a passphrase (at least 8 characters), then prints your receiving address and a 12-word recovery phrase. Write the phrase down on paper. It may be shown only once. No running node is needed for this step.

Code:

.\oag-wallet.exe new --network mainnet

4. Start mining to that address. --mining-threads 0 uses every core. Each thread needs 256 MB of RAM.

Code:

.\oag-node.exe run --network mainnet --mine --payout <your address> --mining-threads 0

Linux (x86_64) and Raspberry Pi / ARM builds are in the same release. There is no macOS build; build from source (instructions in the README).

You do not have to mine. Running oag-node run --network mainnet without --mine validates and relays blocks, and that already helps.

Links

Source: https://github.com/manh923/Orange
Releases: https://github.com/manh923/Orange/releases/latest
Specification (English): https://github.com/manh923/Orange/blob/main/docs/SPEC.en.md
Contact: contact@oagcoin.org

Block explorer
There is no public explorer. Run your own: the node has one built in.

Code:

.\oag-node.exe run --network mainnet --explorer

Then open http://127.0.0.1:8080/ in your browser. It shows the chain as your own node sees it, so you do not have to trust anyone else's.

Honest notes

The network is tiny. Right now it depends heavily on my own nodes, which is exactly what I want to change.
The code has not been audited by anyone else.
The specification is written in Japanese first; the English version is a translation. Comments in the source code are in Japanese.
Orange started from chroma.

English is not my first language. I use translation tools, so please be patient with my replies. Questions, bug reports and criticism are all welcome.
I am in Japan (UTC+9), so replies may take up to a day.