Every coin in existence was mined, and every coin ever issued will be. Miners are the network's security budget — and if you kept an Ethash-class GPU rig, it still works.
XHash is Ethash-derived: memory-hard, GPU-competitive, and altered precisely so that the existing stock of Ethash ASICs cannot be reused. Your GPUs carry over; the software changes. Mine with Hashwarp, the official open-source miner, which takes no fee. Epochs are shortened to 720 blocks (about five days per DAG regeneration at ten-minute blocks).
Also mines XHash: SRBMiner-Multi
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Download Hashwarp, the official open-source GPU miner, for Linux or Windows. SRBMiner-Multi also mines XHash; ethminer and other legacy Ethash miners don't.
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Solo blocks are rare at low personal hashrate. Pools smooth variance into steady payouts. Compare live pools on the pool index.
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Give Hashwarp the pool and your LAX address, or run it without arguments and let its wizard set it up. Rewards are paid to that address.
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Run the Parallax client as a full node with mining enabled and point Hashwarp at it. The client's built-in CPU miner is for learning the flow, not for real hashrate.
Mining income is subsidy plus fees, paid in full. Profitability still depends on your hashrate, hardware efficiency, and electricity price — and on a young network, total hashrate (and therefore your share of it) can move fast in both directions. Difficulty re-targets every block. Run the numbers before you buy hardware; nothing here promises a return.