Solo mining is a lottery. SOLO Groups let independent miners band together so blocks come more often, and when any member wins, the reward is split directly in the block's coinbase, paid to each miner's own address. No custodian, no IOUs, no withdrawals. You trade a rare jackpot for a steadier paycheck without giving up a single principle of solo mining. Plain solo stays 0% fee; groups carry just a 1% group fee.

The solo miner's dilemma

Solo mining is the purest way to mine Bitcoin. You point your hardware at the network, and if you find a block, the entire reward is yours, paid directly by the Bitcoin protocol, with no middleman between you and the coinbase.

But it's a lottery. A single Bitaxe, or a small ASIC, might find a block once every few years, or never. That long, uncertain wait is the price of true independence.

What if you could keep everything that makes solo mining great (self-custody, direct payouts, your own address) but make the wait shorter and steadier? That's SOLO Groups.

What is a SOLO Group?

A SOLO Group is a team of independent miners all pointing their hashrate at the same named group. Everyone keeps mining under their own Bitcoin address. But now the group's combined hashrate hunts for blocks together, and when any member finds one, the reward is split across the whole group, proportional to the work each contributed.

Crucially, this happens trustlessly, on-chain:

• The reward is split directly in the block's coinbase transaction, the very first payout the protocol makes.
• Every member is paid to their own address. The pool never holds your coins. There's no balance, no withdrawal, no IOU.
• If the block never comes, nobody owes anybody anything.

It's still solo mining. You've just teamed up to share the luck.

Why it matters: a steadier paycheck, not a bigger one

SOLO Groups don't magically create more Bitcoin. They reshape the odds. Instead of a tiny chance at a whole block, you get a proportional slice of the group's more frequent blocks. Same expected reward, far less variance.

• Blocks come sooner. A group with ten times your hashrate finds blocks roughly ten times as often, and you're in on every one.
• You still own your reward. Paid on-chain, to your address, the moment the block lands.
• You keep your identity. Your stats, your workers, your hashrate, all still yours.
• No trust required. The split is written into the coinbase by the pool and verified by the Bitcoin network itself, not by us.

For the price of a small fee, a maybe once a decade moonshot becomes a rhythm you can actually feel.

How it works

Joining a group. You join simply by changing your worker's username: add #groupname after your Bitcoin address. No sign-up, no account.

Username:  bc1qYourAddress#teamname

• Want a named worker too? bc1qYourAddress.rig1#teamname
• Prefer to keep the group private? Add .hidden: bc1qYourAddress#teamname.hidden. Hidden groups behave identically but don't appear in the public group list.

The first miner to use a group name creates it; anyone who uses the same name joins it. Groups run on the main ASIC stratum port: stratum+tcp://pool.bitronics.com:3333.

The payout. When any group member solves a block, Bitronics builds a coinbase with one output per contributing member, plus a single fee output:

• Each member receives a share proportional to the work they contributed to the group.
• A 1% group fee goes to the pool. Plain solo mining always stays 0% fee.
• It all settles in that one coinbase transaction, confirmed by the network.

Membership by contribution. A group only counts miners who are actually contributing hashrate right now. A connected-but-idle miner can't pad the group or claim a slice. Your place in the payout reflects real work.

The 50-member cap. A group pays up to 50 members. If it grows past 50, extra miners simply mine solo (they still find blocks, just for themselves), so no one is ever silently dropped or left unpaid.

See everything in real time

Every group gets a live dashboard in the Bitronics UI:

• Group hashrate with live member and worker counts.
• Your share: how much of the group you represent, and what your slice of a block would be.
• Chance of finding a block: realistic odds over a day, a month, and a year.
• Group blocks history: every block the group has found.

More in this release

SOLO Groups are the headline, but this version moves the whole pool forward:

• A dedicated NerdMiner pool. Tiny open-source miners (NerdMiner, ~50 KH/s) now run on their own pool with fractional difficulty, so they submit shares constantly and show a live, accurate hashrate instead of a frozen zero. Big ASICs get their own high-difficulty port.
• SOLO Mining History. A curated hall of fame of real solo blocks from across the ecosystem (solo.ckpool, Public Pool, Parasite, Braiins Solo, SoloPool.com), with open-source-hardware blocks automatically highlighted (that Bitaxe or NerdQaxe that beat the odds), browsable by year.
• Instant block alerts. Telegram notifications the moment the pool (or your group) solves a block.
• A faster, cleaner real-time UI across pool, group, and worker views.

Built for open-source, built for solo

Bitronics exists for the decentralization crowd: Bitaxe, NerdQaxe, NerdMiner, and every hobbyist ASIC pointed at the network for the right reasons. SOLO Groups extend that mission: proof that you can pool your luck without pooling your trust.

Mining solo, but never alone.

Get started: point your miner at Bitronics, add #yourteam to your username, and find your first block sooner.

FAQ

Is this still solo mining?
Yes. There's no shared balance and no custody. When a block is found, the protocol pays every member directly, in the coinbase, to their own address. You've just agreed to share blocks with your group.

How am I paid, and when?
The instant a group block is found and confirmed, straight from the coinbase to your Bitcoin address. No withdrawals, no minimum payout, no waiting for the pool to send anything.

How is my share calculated?
Proportional to the hashrate/work you contributed to the group while it was hunting for the block. More work, bigger slice.

What does it cost?
A 1% group fee on group blocks. Plain solo mining (no group) is always 0%.

What if I lose connection or go idle?
Only active contributors are counted, so idle miners don't dilute anyone. Reconnect and you're back in the split.

What if the group already has 50 members?
The group pays its first 50 members; anyone beyond that mines solo automatically, still finding blocks, just for themselves. Nobody is ever left unpaid.

Can I keep my group private?
Yes. Add .hidden to the group name. It works exactly the same but stays off the public list.