Your Sia ASIC already speaks Bitcoin.
Bitcoin Knots switched proof-of-work to BLAKE2b at block 961,640 — the same algorithm the Siacoin miners in your rack have been hashing for years. No new firmware, no new hardware. Just a new place to send the work.
stratum+tcp://de.b2pool.io:3333
Solo mining on port 3334 · fr and us regions follow · your payout address is your username
- Pool hashrate
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- Miners
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- Blocks found
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- Fee
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Two pools, one node.
Shared mining pays you a steady slice of every block the pool finds. Solo pays you the whole block or nothing at all. Both run off the same synced Knots node, and you can switch by changing a port.
Shared pool · PPLNS
—Hashrate, last 14 days
Paid per share, from block coinbases at maturity.
Solo
—Hashrate, last 14 days
Full block reward to the finder, minus the pool fee.
How a share becomes a block.
Your miner never learns that it is mining Bitcoin. It receives a work header in the shape its firmware already expects, and the pool handles the translation in both directions.
- 01
Template
Our Knots node assembles a BLAKE2b block template from the mempool every few seconds.
- 02
Work header
The pool folds that template into the Sia-style work header your ASIC's firmware understands.
- 03
Share
Your unit rolls the nonce until a hash lands under the share target, then submits it.
- 04
Credit
Accepted shares enter the PPLNS window. When one clears the network target, the block is ours.
Point a miner at it.
There is no signup. Your payout address is your account — set it as the worker name and the pool starts tracking you on the first accepted share.
- Stratum URL
- stratum+tcp://de.b2pool.io:3333Solo: port 3334. Sia-firmware ASICs: port 7777.
- Worker
- <your-payout-address>.<rig-name>e.g. bc1q…7k4f.shed-01
- Password
- xAny value. It is not checked.
- Payout address
- A bech32 address from a wallet dedicated to this chainDo not reuse an address that holds coins on the other chain.
- Reward scheme
- PPLNS, 1.0% feePaid on-chain from block coinbases once they mature.
Questions worth asking first.
Do I need to reflash my miner?
No. BLAKE2b is the algorithm Siacoin ASICs were built for. Stock firmware on an iBeLink BM-S3+ or a comparable Sia unit connects to the pool and starts hashing. If your firmware only accepts a Sia-style stratum handshake, use port 7777 instead of 3333.
Which chain does this pay out on?
The chain that Bitcoin Knots follows after the BLAKE2b hardfork at block 961,640. It shares every block of history before that height with the chain you already know, so use a fresh wallet and a fresh address here — an address holding coins on the other side of the split should stay well clear of this one.
What is the difference between the two ports?
Port 3333 is the shared pool: every accepted share earns a slice of every block the pool finds, so your income tracks your hashrate closely. Port 3334 is solo: your shares only pay if one of them is the block. With a single ASIC, shared is almost always the right answer.
When do I get paid?
Coinbase rewards need 100 confirmations before they can be spent, so payouts follow block maturity rather than a fixed clock. Balances are visible on your miner page from the first share.
Is the pool running yet?
Not yet. The node behind it is still completing its initial sync, and the stratum endpoints go live after that. Numbers on this site are placeholders until then.