Block 881,423 — solo-mined on 30 Jan 2025
FutureBit Apollo Solo · 3.1462 BTC
Bitcoin block 881,423 was solo-mined on 30 January 2025 on FutureBit Apollo Solo, for a block reward of 3.1462 BTC. It is one of the 40 blocks in the Solo Block Record, every one verified on the chain itself.
An Apollo desktop unit — the machine is also its own full node — took a block on FutureBit's Apollo-only solo pool. The chain's coinbase tag settles the pool attribution.
Key facts
| Date | |
|---|---|
| Block height | 881,423 |
| Pool (coinbase tag) | FutureBit Apollo Solo |
| Hardware | FutureBit Apollo — reported ~3 TH/s node-plus-miner |
| Hashrate | 3 TH/s as reported |
| Network difficulty | 108.11 T |
| Block reward | 3.1462 BTC |
| Expected time to a block | 4,900 years |
| Chance on any given day | 1 in 1,800,000 |
| On-chain | mempool.space |
| Source | Bitcoin.com News |
The odds
At that day's difficulty, a rig this size expected one block every 4,900 years — about 1 in 1,800,000 on any given day.
That is the one formula behind every odds line in the record: the network difficulty at that height, times 2³², divided by the reported hashrate — the expected time between blocks for that rig. Odds like these are why solo mining is a lottery, not a paycheck. Run the same math for your own hardware on the odds calculator.
Check it yourself
The date, the reward and the pool tag are read from the chain itself: open block 881,423 on mempool.space to check them. Hardware and hashrate are as reported at the time; this entry's source is Bitcoin.com News.
An open record
This block is one entry in Solo Legends, the Solo Block Record: 40 solo-mined Bitcoin blocks found by small or home miners, each one verified on-chain. The whole record is open data — blocks.json · blocks.csv — licensed CC BY 4.0: use it anywhere, including commercially, as long as you say where it came from. Cite it as SoloLuck.io, “The Solo Block Record”, version 2026-09-14, https://sololuck.io/legends. Something wrong or missing? Tell us.
Solo odds are the same on every pool: your hashrate against the whole network's. See yours on the odds calculator, compare solo pools, or point a miner at SoloLuck — true-solo, with a 0% fee.