1.1.0 — cooldown-bound mining, and a CLI

New genesis on devnet: 61yBp4FQSXq6qxS1Scny8LRBNDLDoNQBKupofVSyyHL8 — difficulty 24, cooldown 300s. The old program is abandoned; genesis parameters can only be set once.

A laptop now mines as much as a rig

Difficulty is set so an ordinary machine finds a proof well inside the cooldown — measured at 12.1 seconds on 5 cores. Past that, extra hashpower buys nothing: every wallet claims once per 300 seconds regardless. Verified: a second attempt 45 seconds after a successful claim got nothing.

Two ways to mine, one core

brew install maxtindall/frankcoin/frankcoin

The CLI is the honest default — Homebrew builds it from source on your machine, so there is no binary to trust with a keypair. The app below is the same core with a window around it (ad-hoc signed, not notarised: right-click → Open on first launch).

Also

• The denomination is lowercase franks
• Registration locks ~0.0078 SOL of rent as a Sybil bond — recoverable by closing the account

Devnet only. These franks are test tokens and are worth nothing.

frankcoin miner 1.0.0 — the Mac app

The only miner frankcoin ships. Mining runs on your own Mac, tied to your own wallet; the keypair never leaves the machine.

Requires macOS 13 or later. Devnet only — these FRANKS are test tokens and are worth nothing.

First launch

The app is ad-hoc signed but not notarised, so macOS will refuse it the first time. Right-click the app → Open → Open, or clear it in System Settings → Privacy & Security. Notarisation needs a paid Apple Developer account.

Using it

1. Load wallet — pick a Solana keypair file (~/.config/solana/id.json, or any exported keypair). It needs a little devnet SOL for fees, from faucet.solana.com.
2. Register once — creates the challenge that is yours alone.
3. Start mining — your Mac searches; each accepted proof mints 500 FRANKS and rolls your challenge, so no proof can be spent twice.

Built from source: cd mac && ./build.sh