Group Solo

Private or public groups mining together as one solo unit — and splitting every block they find.

A payout group is a small team that mines against the network as a single solo unit. When the group finds a block, the coinbase distributes proportionally to each member's work in that round (PROP-style), minus the pool fee. Rounds reset on every block find — unlike PPLNS, the window doesn't slide.

Email-anchored membership. To prevent admins from routing a victim's payouts into their group, every join requires an email-verified BTC address. No silent adds — the joining miner always confirms via a link in their inbox.

The old way vs Group-Solo Traditionally a small group mining together had to trust an admin — or a small group of admins with a shared multisig wallet — to manually distribute the block reward to each member after a block was found. Blitzpool's Group-Solo still has a group admin, but only for organization: inviting members and managing the group. Payouts are handled entirely by the protocol — every block found pays each member directly via the multi-output coinbase, proportional to their contributed work. No manual distribution, no shared custody.

Three ways to join a group

Email invitation — the admin invites you by BTC address; you confirm via the link in your verified mailbox.

Open invite link — the admin generates one time-limited URL (1h–30d) and shares it in Telegram, Discord or similar. Anyone with a verified email for their address can use it to join.

Join request — public groups list themselves in the directory; you submit your address (with an optional message) and the admin approves or rejects.

Pool fee Currently 1.5 % of every block's reward goes to the pool operator, deducted from the miner cut before the coinbase is built. Settable by the admin — value above is pulled live.

When it fits

Team reward sharing without trusting a centralised pool's ledger
Public directory or invite-only — the admin picks the visibility and the right growth path
Admin-token-gated group management, rotation-safe on creator transfer

What to know

Group needs ≥ 2 active members before the group is 'active'
Variance scales with the group's combined hashrate — still solo-like for small groups
Member removal by admin gated on 14-day inactivity

How to start

Create a group from your dashboard (private by default, switch to public any time). Grow it via direct email invitations, an open invite link you share in your community channels, or — if public — by approving join requests from the public directory. New members must first bind + verify an email; routing is address-driven, so any port works.

Connection

Defaultstratum+tcp://blitzpool.yourdevice.ch:3333

TLS — encrypted Stratum V1stratum+ssl://blitzpool.yourdevice.ch:6666

Same stratum port as Solo. Routing is address-driven: connect your miner and the pool looks up your group by BTC address automatically.

Stratum V2 is auto-negotiated on the same port — no separate endpoint.