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 at a reported 3 TH/s, for a block reward of 3.1462 BTC. It is one of the 44 blocks in the Solo Block Record as of , 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.
Quick answers
Who found block 881,423? The record does not name the miner. Block 881,423 was solo-mined on 30 Jan 2025 on FutureBit Apollo Solo, reportedly on FutureBit Apollo — reported ~3 TH/s node-plus-miner at 3 TH/s. The entry's source is Bitcoin.com News.
How was this record verified? The date, the reward and the pool tag were read from the chain itself, at block 881,423 on mempool.space. Hardware and hashrate are as reported at the time, by the source above. The entry is part of the Solo Block Record, version 2026-10-28, open data under CC BY 4.0.
An open record
This block is one entry in Solo Legends, the Solo Block Record: 44 solo-mined Bitcoin blocks found mostly 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 2026-10-28, 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.