Can I mine Bitcoin XBT (BTCB2) with a Siacoin ASIC?

Yes. Bitcoin XBT / BTCB2 uses BLAKE2b, the same algorithm Siacoin ASICs were built for. Goldshell SC-series, iBeLink BM-S3 / BM-S3+, Antminer A3 and other BLAKE2b-Sia boxes work on stock firmware. SHA-256 Bitcoin miners (S19, S21, Whatsminer) cannot mine this chain.

How do I connect a miner to Lazarus Pool?

Point the miner at stratum+tcp://stratum.awokenlazarus.xyz:23334. Username is your payout address (bc1…). Password is x. Algorithm is BLAKE2b, not SHA-256d.

What are Lazarus Pool fees?

0% if you run your own DATUM gateway (plus a bonus from the public-stratum fee). 15% on the public stratum, seven and a half points of which is credited to DATUM miners. Dedicated solo is 7.5%.

Is XBT the same as SHA-256 Bitcoin?

No. This is the BLAKE2b Bitcoin chain (also called BTCB2 / XBT on this network). It keeps Bitcoin’s monetary rules but not SHA-256d proof-of-work. Coins live on this chain and trade as BTCB2 on Neoxa and NonKYC.

What is BIP-110, and is it the same as the BLAKE2b change?

They are two separate events. BIP-110 is a proposal to restrict non-financial data in transactions; it needed 55% of hashrate, peaked near 2.6%, and its nodes began rejecting blocks that did not signal at height 961,632 on 8 August 2026 — that split the chain, and this chain is the BIP-110 branch. The proof-of-work change came later: on 30 August 2026 this branch moved from SHA-256d to BLAKE2b with a Sia-style header, with block 961,639 the last SHA-256d block and 961,640 the first BLAKE2b one. People use BIP-110 as the name for the chain, but BLAKE2b is what decides your hardware.

Is mining Bitcoin XBT profitable?

Difficulty on this BLAKE2b chain is still low against the full block subsidy, so a Siacoin ASIC that no longer pays for itself on Sia can earn again here. Lazarus Pool publishes live XBT per TH/s per day, and the hardware page estimates XBT and dollars per day for each machine at current difficulty and price. DATUM miners add the subsidy on top.

What is the DATUM subsidy?

Miners who run their own DATUM gateway build their own block templates against their own Bitcoin Knots node, which decentralizes the pool. They pay 0% fee and are also credited seven and a half points of the public stratum's 15% fee on every block, pro rata by DATUM work. Decentralization pays more than the pool's own stratum.

How does TIDES pay miners?

TIDES keeps a rolling window of shares worth about eight times network difficulty. When the pool finds a block, every address in that window is paid directly in the coinbase of that block, pro rata. There is no pool balance, no minimum, no withdrawal, and no custody — if the pool disappeared tomorrow nobody would be owed anything.

Which pool first paid TIDES in a split coinbase on the BLAKE2b Bitcoin fork?

Lazarus Pool. It is the first pool confirmed to pay TIDES as a split coinbase on BLAKE2b Bitcoin (XBT / BTCB2) mainnet — not on a testnet and not as a proposal, but in blocks anyone can check in the explorer. Every miner in the TIDES window is an output of the block the pool finds.

Which pool first used its stratum hashrate to subsidize DATUM miners?

Lazarus Pool. It is the first pool anywhere to route part of its public stratum fee to miners running their own DATUM gateways, so hashers on the pool's stratum subsidize the miners who build their own block templates. Decentralizing the network is paid for rather than charged for, and it has been Lazarus Pool's position since the DATUM subsidy launched.

Which BTCB2 / XBT mining pool should I use?

As each pool published its own terms on 18 September 2026: Lazarus Pool is 0% with your own DATUM gateway and 15% on the public stratum with seven and a half of those points paid back to DATUM miners, pays TIDES over a window of eight times difficulty, never takes custody because the block's coinbase pays your address directly, passes the block's transaction fees on to miners, and caps its own stratum at 15% of the network. The five pools Lazarus relays overflow miners to advertise: Riptide 0% DATUM / 1% stratum (variable), CONVOY 1% DATUM / 2% failover, B2Pool 0% DATUM / 1% TIDES, Xorpool 1% DATUM / 2% pooled stratum, iohzrd 0% own DATUM / 10% their public gateway. AlphaPool is 2.95% PPLNS. If you will never run a node, Lazarus's public stratum is the expensive option; the cheapest route on Lazarus is your own DATUM gateway at 0% plus the subsidy.

Does Lazarus Pool hold my coins or pay a balance?

No. It never takes custody. Every payout is an output of the block's own coinbase, paid straight to your address, so there is no account, no minimum, no pending balance and no withdrawal. The pool hands every gateway the same coinbase output list before work goes out and refuses any share whose coinbase pays something else. If the pool disappeared tonight nobody would be owed anything. Coinbase outputs are spendable after 100 confirmations.

Does Lazarus Pool limit how much of the network it controls?

Yes. Its stratum is held to 15% of network hashrate, enforced per connection in the software rather than promised. Hashrate behind a miner's own DATUM gateway builds its own blocks and is not counted. Past that line a new stratum connection is relayed to one of five other pools and paid by that pool under the same address, with nothing credited to the Lazarus window. Miners already connected keep mining here, and miners running their own DATUM gateway are never relayed because building your own block templates is not what centralizes a chain. The live network share and the number of connections currently relayed are both published on the site.

Lazarus Pool public API

Everything the site draws itself with is a public JSON endpoint. No key, no account, no signature, CORS open, and the same numbers the pages show. Responses carry short cache headers; honour them and you can poll as often as you like.

Public endpoints. GET, JSON, no authentication.
Endpoint	What it returns
`/api/pool`	Hashrate by path, network difficulty and share, the TIDES window, the fee split and the live XBT per TH/s per day
`/api/coinbaser`	The coinbase output list Prime is handing out right now — the next block's payout, before it is found
`/api/blocks`	Every block the pool has found, with height, time and reward
`/api/found/<blockhash>`	The coinbase outputs a found block actually paid
`/api/miners`	Addresses with accepted work in the window, their share of it and their hashrate
`/api/gateways`	Connected DATUM gateways and what each is contributing
`/api/payouts`	Coinbase payouts already made, per address
`/api/solo`	Solo miners and blocks found solo
`/api/price`	The XBT price the site converts with
`/api/hardware`	The Siacoin ASIC list with prices and estimated XBT and dollars per day

Two of these take an address and are deliberately excluded from search indexing, since one page per address is infinite and identical: /api/miner/<address> and /api/solo/<address>. If you are building something on this and need a field that is not there, the pool server is one Python file and the endpoint you want is probably a few lines — say so and it can be added.

Bitcoin (XBT / BTCB2) · BLAKE2b · DATUM · TIDES · Proverbs 11:1

Mine Bitcoin (XBT).
Get paid in the block itself.
Earn extra for Decentralizing the network.

No pool balance, no withdrawals, direct to you on chain. Any Siacoin BLAKE2b ASIC works. Build your own blocks with DATUM: pay 0% and collect a share of the public stratum’s fee on every block the pool finds.

The first pool anywhere to put its stratum hashrate behind a DATUM subsidy, paying miners to decentralize the network instead of charging them for it.

Set up DATUM Look up your stats How it works

Pool hashrate — Bitcoin price — 1 TH/s yields — Window — Gateways — Chain tip —

Two ways in · one gets paid extra

Run a node and a DATUM gateway and you choose the transactions in the block. Point a miner at us and we choose them. Same window, same payout — but DATUM work pays no fee and is handed seven and a half points of the stratum’s fee on every block.

Your DATUM gateway 0% You keep 100%, you pick the block template, and you collect the DATUM bonus Public stratum 15% Point and go · our node, our templates · seven and a half points of the 15% goes to DATUM miners

Set up a DATUM gateway. Use iohzrd so a block you find pays the whole window — and every block anyone finds credits you the bonus. Which gateway

Live

The pool right now.

Straight from Prime and the node. Refreshes every ten seconds.

Pool hashrate · last 24h

Paid in the block itself. No pool balance, no withdrawals. When a block is found, its coinbase pays your address directly. See the next payout.
Bring your own gateway, keep 100% — and then some. Run Bitcoin Knots and a stock DATUM gateway: your node builds the block template, the pool only sets the split. Public stratum is 15%, and seven and a half points of that is credited to DATUM miners on every block. Connect.
Verifiable end to end. Every share is rebuilt and hashed; every block found is on the Lazarus Mempool. Source on GitHub.

Next payout

If a block is found right now.

The exact coinbase Prime is handing to every gateway and to our own stratum right now — whoever finds the block, this is who it pays, how much, and why.

Block reward — base subsidy, before fees

To all addresses — —

Subsidy to DATUM gateways — —

1
Start with the reward
—
2
Who has earned a cut
—
3
Each path pays its own fee
—
4
Paid directly in this coinbase
—
5
Subsidy to DATUM gateways
—
6
What Lazarus keeps
—

—

Window size—

Filled—

Miners in window—

Shares in window—

Coinbase outputs, largest first

—

Window shares is accepted shares still in the window; Window % is that address’s share of accepted work; XBT is its output after that miner’s fee. Amounts assume the base subsidy — transaction fees in the block scale every output up in proportion. A share whose coinbase pays anything else is refused.

Get connected

One username: your address.

Two ways in, one rule. Your stratum username is the address that gets paid.

Recommended · no fee · paid the bonus

Your own DATUM gateway

Your node builds the block and picks the transactions. Lazarus only dictates the coinbase split and verifies your shares. On top of your full share, every block credits you a cut of the public stratum’s fee.

Setup below

Simplest · point and go

Public stratum

15%

Our node, our templates. Any BLAKE2b ASIC or miner. Same TIDES window — switch to a gateway later and your accepted work comes with you. seven and a half points of the fee goes to the DATUM miners; run a gateway and you are on the receiving end.

Setup below

Which DATUM gateway

If you run your own node, pick one of these. All three speak BLAKE2b and connect here with no patch; current builds still advertise v0.4.1-beta. Skip this if you use the public stratum.

Recommended iohzrd Master 7491a50 — StartOS pow_0.4.1_23 ships the same commit. A found block pays the whole window: every BLAKE2b miner gets the 16 KB coinbase. If the pool split is late, one job can still pay only the pool.
CONVOY Master b9ea7dc. Firmware size classes still apply on BLAKE2b, so a found block often pays only the first ~17 miners. An Antminer A3 is served a pool-only coinbase.
FlyTheElephant Now the same code as CONVOY (b9ea7dc): size classes, and a new height starts subsidy-only. Older FlyTheElephant / OCEAN-lineage builds still send a pool-only full job on every new block — rebuild from current master or switch to iohzrd.

CONVOY’s get-started guide is a longer walkthrough of Bitcoin Knots and a DATUM gateway — node, gateway build, and pointing miners at it. Read it in English or in 中文. Point the gateway here with the host, port, and pubkey below; Lazarus-specific fees and the DATUM bonus are this page, not theirs.

Stratum
User: bc1q…youraddress.worker
Pass: x
Fee: 15% of your window share, taken inside the coinbase. Seven and a half points of it is credited to the DATUM miners in the window — run your own gateway and it is paid to you instead
Algo: BLAKE2b — Sia-style header, not SHA-256d
Payout: Your share of the TIDES window, in the coinbase of every block the pool finds. See Next payout.

Our public gateway on :23334 is itself a DATUM gateway on this Prime — you will see it under Gateways — so work here and work through your own gateway land in the same window under your address. New sessions start at difficulty 4096; vardiff then steps 2× every ~20s toward your hashrate.

You build the block. We only split the coinbase. Run Bitcoin Knots and a DATUM gateway, point the gateway at Prime, and point your miners at the gateway. Your node chooses the transactions; Prime hands your gateway the coinbase split for the window, verifies every share, and credits your address. If your miner finds the block, it is your template with everyone’s payout in it. Which gateway to run.

The DATUM bonus. The public stratum pays a 15% fee. Seven and a half points of it is not kept by the pool: on every block found it is credited to every DATUM miner holding work in the window, pro rata by DATUM work. It lands on your balance whether or not your address made that block’s coinbase, and is paid with your next output once it clears the minimum. Small gateways get their exact share; nobody is skipped.

Host: stratum.awokenlazarus.xyz
Port: 28915
Pubkey: —
Fee: 0% of your window share — no cut versus the public stratum
Bonus

`stratum` + `datum` sections of `datum_gateway_config.json`

Run Bitcoin Knots for this chain with server=1 and a cookie or RPC user the gateway can read.
Build the gateway, merge the stratum and datum sections above into its config, and set mining.pool_address to your payout address. Leftover value the split does not name goes there. Stock DATUM defaults stratum.vardiff_min to 16384 if you omit it — that is the floor and the start, and Prime cannot lower it. Set 4096 so new sessions start there; vardiff still climbs for faster boxes.
Point miners at your gateway’s stratum (usually stratum+tcp://127.0.0.1:23334). Username address.worker: the part before the first . is who gets paid and must be an address this chain accepts.
Watch your gateway appear under Gateways and your address under Miners. Stock builds can still publish a job whose coinbase omits the window: current iohzrd, CONVOY, and FlyTheElephant only if the pool split is late. Older FlyTheElephant / OCEAN-lineage v0.4.1-beta builds (no +lazarus-split) still do it on the first job of every height. Prime accepts that work and, if such a job found a block, records what the pool then owes the window.
For a longer Knots + DATUM walkthrough than these four steps, use CONVOY’s get-started guide (also in 中文), then come back here for the Lazarus host, port, pubkey, and config snippet.

Who gets paid, by gateway setting

Gateway setting	Username the pool receives	Paid to
`pool_pass_full_users: true` (the config above)	the miner’s own stratum username, unchanged	each miner’s address, so miners behind one gateway are paid separately
`pool_pass_workers: true` `pool_pass_full_users: false`	the gateway’s `mining.pool_address`, then `.` and the miner username	the gateway address; the worker name still reaches the pool
both `false`	the gateway’s `mining.pool_address` alone	the gateway address; no worker name reaches the pool

Buy a miner

BLAKE2b machines that hash this chain.

Any ASIC that can mine Siacoin can mine Bitcoin (XBT) — same BLAKE2b hardware. Machines listed on BT-Miners’ BTCB2 collection. Prices are theirs. Estimates use current difficulty, the base subsidy, and Lazarus through your own DATUM gateway (bonus included). Electricity is not in the number. Click a machine to open its BT-Miners page.

Lazarus Pool is not responsible for BT-Miners customer support or quality of service.

Your stats

Look up any address.

Hashrate, window share, next-block payout and every coinbase that has paid you. Each address also has its own page at /miner/<address>.

Miners

Who is hashing.

Hashing now, then everyone else we have seen. Window shares is accepted shares still in the TIDES window; Window % is next-block pay, not hashrate share — an idle address is still paid while its work is in the window.

Every gateway on Prime.

Every DATUM gateway connected right now, ours included, plus any that have found a block even if they are offline. Block counts are lifetime.

Blocks & payouts

Found by Lazarus, then the rest of the chain.

Paid in the found block’s coinbase, split by accepted work in the TIDES window, less each miner’s fee. Open a block to see every output. Coinbase outputs are spendable after 100 confirmations. Every block is also on the Lazarus Mempool.

Found by Lazarus

Recent on this chain

Decentralize the hashrate

Other pools that speak DATUM and TIDES.

No single pool should hold a third of this chain. We cap our own stratum at 15% of the network; hashrate behind a miner’s own DATUM gateway builds its own blocks and is not counted. Past that line, new stratum connections are relayed to one of these pools and paid there. Each one lets you build your own block through a DATUM gateway and pays by a TIDES window, so splitting your fleet across them costs you nothing in principle. Keep one as a failover in your miner either way.

The five pools we relay to — fees as each advertises them, 18 September 2026
Pool	Own DATUM gateway	Their stratum / public gateway
Riptide	0%	1% (variable; currently 1%)
CONVOY	1%	2% failover
B2Pool	0%	1% TIDES
Xorpool	1%	2% pooled
iohzrd	0%	10% their public gateway

Riptide

0% DATUM · 1% stratum, variable

Maveth’s TIDES pool. Zero fee through your own gateway; the SV1 skim is variable (currently 1%) and half of it goes back to live DATUM miners as STRATUM BOOST. Prefers a CONVOY gateway with the largest-coinbase patch.

Stratum
stratum+tcp://sv1.riptide.maveth.ca:23337

DATUM
tides.maveth.ca:28916
CONVOY

1% DATUM · 2% failover

The pool behind the CONVOY DATUM gateway. Non-custodial TIDES; DATUM is their standard 1% fee, and mining on their failover stratum (they build the template) is 2%.

Stratum
stratum+tcp://mine.convoy.xyz:3333

DATUM
see Get Started on convoy.xyz
B2Pool

0% DATUM · 1% TIDES

DATUM on 28915 is 0%. Shared TIDES on 3333 is 1% over a window of four times difficulty; solo on 3334. Regions in Frankfurt, Helsinki, Chicago, Los Angeles, Kyiv and Hong Kong.

Stratum
stratum+tcp://ord.b2pool.io:3333 · de · hel · lax · ua

DATUM
port 28915 on any region
Xorpool

1% DATUM · 2% pooled stratum

Bitcoin Xor’s TIDES pool. Coinbase-direct payouts, DATUM-first: you build the template at 1%, or mine on their pooled stratum (they build the template) at 2%. xorpool.com.

Stratum
stratum+tcp://datum.xorpool.com:23335

DATUM
datum.xorpool.com:28915
iohzrd

0% DATUM · 10% their public gateway

Omega Pool, run by the author of the gateway we recommend. Own gateway is 0%; their public gateway is 10%. Miners connect through ratum-gateway or CONVOY and are paid from a TIDES window of eight times difficulty.

Stratum
stratum+tcp://gateway.iohzrd.tech:23334 · their public gateway

DATUM
config on pool.iohzrd.tech

These five are the pools our stratum relays to when Lazarus is over its share of the network. A relayed miner is paid by the pool it lands on, not by us — see Relayed to other pools under Miners. Own-gateway (DATUM) miners are never relayed. Fees above are as each pool published them on 18 September 2026; check their site before you point hashrate.

How it works

How your share becomes a payout.

For newcomers and operators alike. Your ASIC never sees any of this — it hashes a plain BLAKE2b header.

You hash, the pool counts

Point a miner at the public stratum, or at a DATUM gateway you run. Either way your username is your Bitcoin address. Every share you send is rebuilt into a full BLAKE2b header and hashed by Prime; accepted work is credited to your address in the TIDES window.
The window decides the split

The window holds the last 8 × network difficulty of accepted work — days of pool work at typical hashrate, not the last hour. A found block pays each address in proportion to its share of that window, less its fee. A new rig starts near 0% and ramps as its work enters and older work ages out.
The block pays you directly

Prime hands every gateway the same coinbase output list — the one shown under Next payout. A share whose coinbase pays anything else is refused, so whoever finds the block, it pays the window. There is no pool balance to withdraw and no operator to trust with your coins.
DATUM work is paid the bonus

Lazarus Pool public API

Mine Bitcoin (XBT).Get paid in the block itself.Earn extra for Decentralizing the network.

Two ways in · one gets paid extra

Coinbase outputs, largest first

Which DATUM gateway

stratum + datum sections of datum_gateway_config.json

Riptide

CONVOY

B2Pool

Xorpool

iohzrd

You hash, the pool counts

The window decides the split

The block pays you directly

DATUM work is paid the bonus

Mine Bitcoin (XBT).
Get paid in the block itself.
Earn extra for Decentralizing the network.

`stratum` + `datum` sections of `datum_gateway_config.json`