Braiins Pool: coins, fees, payouts and reviews
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Key facts
- Coins mined
- BTC
- Payout schemes
- FPPS
- Operator
- Braiins
- Official site
- braiins.com/pool
Checked on 2026-10-27 against the official site, docs and app-store pages.
Status
Slush Pool was renamed Braiins Pool in 2022; it was earlier known as bitcoin.cz.
What is Braiins Pool
Braiins Pool is a Bitcoin mining pool that mined its first block in 2010, first as bitcoin.cz and then as Slush Pool. It is operated by Braiins Mining Limited and supports Bitcoin only.
Coins, payout schemes and fees
| Coin | Payout scheme | Pool fee | Minimum payout |
|---|---|---|---|
| BTC | FPPS | 2.5% (0% when mining with Braiins OS firmware) | 0.0002 BTC on-chain (free from 0.005 BTC); 1 satoshi via Lightning |
Payouts
| Parameter | Details |
|---|---|
| Payout schedule | Payouts are created daily at 09:00 UTC; on-chain payouts usually confirm in 1–2 hours, Lightning payouts within minutes. |
| Payout scheme explained | FPPS: every accepted share earns a share of the block subsidy plus average transaction fees, calculated once per UTC day. |
| Transaction fees | Transaction fee income is shared with miners; on-chain payouts below 0.005 BTC cost 0.0001 BTC. |
| Lightning payouts | Payouts can be sent over Lightning (up to 0.005 BTC) to a wallet with a Lightning Address, or withdrawn manually by invoice once per 24 hours. |
| Solo mining | Separate solo service (no registration): the block reward goes straight to the miner's address; 0.5% is kept for the CKPool software authors. |
| Pool fee with Braiins OS | Miners running Braiins OS firmware pay a 0% pool fee. |
Connecting
| Parameter | Details |
|---|---|
| Server regions | One address, stratum.braiins.com (ports 3333 and 443); servers worldwide are selected automatically by location. |
| Stratum V2 | Supported with Braiins OS firmware; the URL carries the pool's public key to block man-in-the-middle hashrate theft. |
| Supported hardware | SHA-256 ASIC miners; GPU, CPU and phone mining are not supported. |
| Account needed | Yes for pool mining (username.workername login); solo mining needs no registration. |
Security and transparency
- Two-factor authentication (TOTP or U2F hardware keys) is required for important account changes once enabled.
- Access profiles give full, read-only or limited read-only access, including anonymous watcher links.
- A payout setup lock can stop anyone with account access from changing payout settings.
- The pool warns that it offers no cloud mining or investments and that staff use only braiins.com email addresses.
History
| Date | Event |
|---|---|
| 2010 | The pool, then known as bitcoin.cz, mined its first block. |
| 2022 | Slush Pool was renamed Braiins Pool. |
Risks and caveats
- Under the terms, the pool may change its reward method and calculation rules after notifying miners.
- Rewards sit in the pool account until a payout rule or manual withdrawal sends them to the miner's wallet.
- The terms exclude anyone subject to US OFAC sanctions; such accounts can be suspended.
About the operator
- Legal entity
- Braiins Mining Limited, British Virgin Islands, company no. 2038702
- Registered office
- Road Town, Tortola, British Virgin Islands
- Founded
- First block mined in 2010
Official links
- Website: braiins.com/pool
- Help: academy.braiins.com/en/braiins-pool/about
- Fees: academy.braiins.com/en/braiins-pool/rewards-and-payouts
- Terms: braiins.com/pool/terms-and-conditions-braiins-mining-limited
Questions and answers
Which coins can I mine on Braiins Pool?
Only Bitcoin (BTC), paid under the FPPS scheme.
What fee and payout scheme does Braiins Pool use?
FPPS with a 2.5% pool fee, or 0% for miners running Braiins OS firmware. Transaction fee income is shared with miners.
What is the minimum payout on Braiins Pool?
0.0002 BTC on-chain (payouts below 0.005 BTC cost 0.0001 BTC) or 1 satoshi over Lightning, up to 0.005 BTC.
Who operates Braiins Pool?
Braiins Mining Limited, a British Virgin Islands company. The pool started in 2010 as bitcoin.cz and was later called Slush Pool.
Is an account needed?
Yes for pool mining. The separate solo service works without registration, using a Bitcoin address as the username.
Sources
- braiins.com
- Braiins Academy — Braiins Pool: About
- Braiins Academy — Rewards & Payouts
- Braiins Academy — Bitcoin Mining Setup
- Braiins Academy — Stratum V2 Manual
- Braiins Academy — Solo Mining
- Braiins Academy — User Accounts
- Braiins Academy — FAQ: Account
- Braiins Academy — FAQ: Pool
- Braiins Pool — Terms and Conditions (Braiins Mining Limited)
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