What is hash256_miner?

hash256_miner is a command-line GPU miner for HASH256, a proof-of-work cryptocurrency that runs on the Ethereum blockchain. Proof-of-work mining means your computer does intensive mathematical calculations (repeatedly hashing data with different random numbers called nonces) until it finds one that satisfies the network's difficulty requirement. This miner does that calculation on your GPU rather than your CPU, which is far faster, using either CUDA (NVIDIA's GPU programming framework) or OpenCL (a more universal GPU standard). The tool replaces mining through HASH256's web interface by running the calculations natively on your machine. Once your GPU finds a valid nonce, the miner automatically sends a transaction to the Ethereum blockchain (from your own wallet) to claim the reward. You keep your private key locally in an environment file that is never uploaded anywhere. Setup requires Windows 10 or 11, a Node.js installation, an NVIDIA RTX 20 series or newer GPU for the CUDA path (older NVIDIA cards and AMD GPUs can use the OpenCL path instead), and enough ETH in your wallet to pay Ethereum gas fees for submitting mining transactions. You configure it by copying the example .env file, filling in your private key and an Ethereum RPC URL (a connection endpoint to the Ethereum network), and then running npm run native:cuda or npm run native:opencl. A pre-built Windows binary is included so you do not need to compile the CUDA code yourself, though build instructions are provided if you want to recompile it. Benchmark and test commands let you verify correctness and measure performance before committing to live mining.