FutureBit Apollo Solo.

FutureBit Apollo Solo is mempool.space’s name for blocks found through the solo-mining poolMining poolA group of miners who share the work of finding blocks and split the rewards, so each gets paid steadily instead of rarely. built into the Apollo, a small Bitcoin miner for the home. It is made by FutureBit, a company in Brooklyn, New York, founded by John Stefanopoulos. Each Apollo is also a full node: it checks every block and keeps its own copy of the blockchainBlockchainBitcoin's shared record of every payment since 2009, stored in blocks that each link to the one before — which is what makes it a chain.. Since April 2024 its software, Apollo OS 2, has let owners switch on a pool of their own on the device and mine solo: if their machine finds a block, they keep its whole reward, and if it never does, they get nothing.

So the name covers many people’s own pools, not one company’s. Other mining machines can join an owner’s pool, and FutureBit also sells a Solo Node, which runs the node and pool without a miner of its own, so the machine that found a block isn’t always an Apollo. The owner’s node chooses which transactions go into the block, with Bitcoin Core or, since December 2025, Bitcoin Knots if the owner picks it. Every block under this name so far has paid its whole reward, in its first transaction, to one address, with nothing to FutureBit. That reward is separate from the transactions confirmed inside the block.

Four blocks have carried the name. The first was 867,760, on 28 October 2024. The second, 881,423 on 30 January 2025, came from a fundraiser by the 256 Foundation, a charity that works on open-source mining software and hardware. For about ten hours it asked miners to point their machines at its pool on one Apollo, and at the busiest point about 350 took part. So it wasn’t one home miner’s win, as some news reports said; the reward went to the foundation. The miner behind 888,737, on 21 March 2025, told FutureBit they had three Apollos and a larger Bitmain machine at home. The latest, 973,262, came on 26 October 2026 from an owner whose message in the block names them only as Wilson; FutureBit’s founder congratulated “Wilson whoever you are”.