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?

You mine with your own DATUM gateway pointed at datum.lazarus-xbt.xyz:28915. Point your miners at that gateway. Username is your payout address (bc1…). stratum+tcp://stratum.lazarus-xbt.xyz:23334 is the donation, validation and fallback endpoint, not a way in to mining. Algorithm is BLAKE2b, not SHA-256d.

What are Lazarus Pool fees?

0% if you run your own DATUM gateway. The public stratum is a donation, validation and fallback endpoint at 100%, with a 24 h / 96 h grace at 25%, then 100%; the pool keeps the whole fee. Custody fee: from block 977,665, make-goods for pool-only or partial coinbases pay 10% less to miners whose own out-of-date gateway produced them. Miners on current gateways are paid in full.

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 pay 0%.

Can I use a Ratum gateway (ratum-gateway) with Lazarus Pool?

Yes. ratum-gateway, iohzrd's Rust DATUM gateway, reads the same datum_gateway_config.json as the C gateway and connects to Lazarus with no patch: 0% fee, like any own gateway. Point its datum section at datum.lazarus-xbt.xyz:28915 with the pool pubkey, set mining.pool_address to your own address, and run Bitcoin Knots 29.4.2. Lazarus tests each Ratum release against its Prime; the guide at pool.lazarus-xbt.xyz/ratum has the install, a full config and the results.

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 BTCB2 / XBT mining pool should I use?

Lazarus Pool is 0% with your own DATUM gateway. Its public stratum is a donation, validation and fallback endpoint at 100%, with a 24 h / 96 h grace at 25%, then 100%. It 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. As each other pool published its own terms on 18 September 2026, 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%.

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 6,481 confirmations (100 for blocks before 973,440).

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.

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

Lazarus Pool.
The Bitcoin mining pool for Sia ASICs.
Get paid in the block itself.

Bitcoin now runs on BLAKE2b, so any Siacoin ASIC can mine it. Point yours here and every payout lands straight in the block’s coinbase.

0% fee through your own DATUM gateway
You build the block: your own node picks the transactions, the pool only splits the coinbase
Paid on chain, in the coinbase. The pool never holds your coins
Open source on GitHub, run by Lazarus since day one

Set up DATUM Look up your stats How it works

Pool hashrate — Bitcoin price — 1 TH/s yields —

One way in: DATUM

Run your own node and DATUM gateway: you build the block and pay 0%.

Your DATUM gateway 0% You keep 100% and build your own blocks Donation, validation and fallback 100% For testing a miner, or as a fallback · 25% for the first 24 h (96 h for DATUM miners), then 100%; the pool keeps the fee

Set up a DATUM gateway. Pick one from our tested list.

Custody fee: from block 977,665, make-goods for pool-only or partial coinbases pay 10% less to miners whose own out-of-date gateway produced them. Miners on current gateways are paid in full.

Live

The pool right now.

Straight from Prime and the node, refreshed every ten seconds.

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.
Your own gateway: 0% fee. Your node builds the block; the pool only sets the split. 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 coinbase Prime is handing out right now. Whoever finds the next block, this is who it pays and how much.

Block reward — base subsidy, before fees

To all addresses — —

How this split is worked out

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
What Lazarus keeps
—

—

Window size—

Filled—

Miners in window—

Shares in window—

Coinbase outputs, largest first

—

Window % is each address’s share of accepted work; XBT is its output after fees. Amounts use the base subsidy; transaction fees scale every output up.

Get connected

One username: your address.

One way in: a DATUM gateway you run. Your username is the address that gets paid.

Which DATUM gateway

Pick one of these. All three speak BLAKE2b and connect here with no patch. Keep whichever you run up to date.

Recommended CONVOY The reference BLAKE2b DATUM gateway, and the most actively maintained. Run the v0.5.0beta release; v0.4.1-beta builds are out of date. Every miner gets the whole split, so a found block pays the whole window.
FlyTheElephant CONVOY’s code plus FlyTheElephant’s own work. Every miner gets the whole split, so a found block pays the whole window. Setup guide.
Ratum iohzrd’s Rust gateway: one binary for Linux, macOS and Windows, with the same config file. Set mining.pool_address to your own address. Setup guide.

Want a full walkthrough? CONVOY’s get-started guide (中文) covers Knots and the gateway. Then use the host, port and pubkey below.

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. Which gateway to run.

Host: datum.lazarus-xbt.xyz
Port: 28915
Pubkey: —
Fee: 0% of your window share — no cut versus the public stratum

`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. Keep stratum.vardiff_min at 4096: stock DATUM defaults to 16384, and Prime cannot lower it.
Point miners at your gateway’s stratum (usually stratum+tcp://127.0.0.1:23334). Username: just a machine name, like rig1. Payouts go to mining.pool_address.
Watch your gateway appear under Gateways and your address under Miners. Running an older FlyTheElephant / OCEAN-lineage v0.4.1-beta build (no +lazarus-split)? Update it: it can leave the window out of a block.

Who gets paid, by gateway setting

Gateway setting	Username the pool receives	Paid to
`pool_pass_full_users: true`	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 config above)	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 Siacoin ASIC mines Bitcoin (XBT): it is the same BLAKE2b hardware. Machines and prices come from BT-Miners’ BTCB2 collection. Earnings assume your own DATUM gateway at 0% fee, before electricity.

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

Rent hashrate

BLAKE2b rigs you can rent, pointed at your own node.

Rent BLAKE2b rigs on RouteHash and point them at your own DATUM gateway’s public stratum port. Pay in BTC or XBT. Each card compares the rental cost with what that hashrate would earn here. Or buy a machine.

List your BLAKE2b miner on RouteHash to earn between your own mining.

Lazarus Pool is not responsible for RouteHash customer support or quality of service. Rentals are paid to RouteHash in BTC or XBT; XBT amounts use the NeoxEX best bid. Estimates exclude luck, transaction fees and electricity.

Your stats

Look up any address.

Hashrate, window share, next payout and every coinbase that has paid you.

Prefer to ask? Connect any AI assistant to our MCP server. Read-only, no login.

Miners

Who is hashing.

Hashing now, then everyone else we have seen. Window % is next-block pay, not hashrate: 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.

Every payout is an output of the found block’s coinbase: open a block to see them all. Outputs are spendable after 6,481 confirmations (100 for blocks before 973,440). Also on the Lazarus Mempool.

Found by Lazarus

Recent on this chain

Learn

New to this? Start here.

Six short answers. Mining here needs only a payout address: no account, no sign-up.

Proof of work, in one minute

Miners race to find a hash below a target. It is pure trial and error, so more hashes win more often, and that cost is what makes the chain hard to rewrite.

How the pool fits in

Why this chain uses BLAKE2b

At block 961,640 (30 August 2026) this chain switched from SHA-256d to BLAKE2b. Supply, halvings, addresses and history are unchanged, and Siacoin ASICs now mine it.

The fork, and BIP-110

What DATUM changes

On an ordinary pool, the pool picks what goes in the block. With your own DATUM gateway and Knots node, you build the template and the pool only splits the reward. Here that costs 0%.

Set up a DATUM gateway

How TIDES pays

TIDES pays on a rolling window of about eight network-difficulties of work. When the pool finds a block, every address with work in the window is paid its share. No rounds, no resets.

TIDES explained

Paid in the block itself

Each payout is an output of the block’s own coinbase, sent straight to your address. No balance, no threshold, no withdrawal, and every payout is on chain.

Non-custodial payouts

A pool that caps itself

The public stratum is capped at 15% of network hashrate; past that, new connections are relayed to other pools. Your own DATUM gateway never counts toward the cap.

The 15% self-cap

From zero to mining, the DATUM way

Get a payout address. Any wallet that gives you a bc1… address on this chain. That address is your username; there is nothing to register.
Run your own node. Bitcoin Knots for this chain, with server=1 and a cookie or RPC user your gateway can read. Your node is what chooses the transactions in your blocks.
Start a DATUM gateway. Build one (CONVOY is recommended), paste in the Lazarus host, port and pubkey from the Connect page, and set mining.pool_address to your address.
Point your miner at your gateway. Any Siacoin BLAKE2b ASIC, aimed at your own gateway’s stratum port, with the username address.worker.
Watch it work. Your gateway shows up under Gateways and your address under Miners. You pay 0%, and you build your own blocks.

Set up DATUM What would I earn?

Words you will meet

Hashrate: Hashes tried per second. 1 TH/s is a trillion a second; 1 PH/s is a thousand TH/s.
Share: A hash good enough to prove you are working, though not good enough to be a block. Shares are how the pool measures your work.
Difficulty: How hard the network’s target is. It retargets so blocks keep their pace as hashrate comes and goes.
Coinbase: The first transaction in a block, which creates the reward. Here it pays miners directly.
Block template: The draft block a miner hashes: which transactions are in it, and who the coinbase pays.
Window: The stretch of recent shares TIDES pays on. Here it is eight network-difficulties of work.
Gateway: Your own DATUM software. It talks to your node for templates and to the pool for the reward split.
Orphan: A valid block that lost the race to another found at the same moment. It pays nothing.

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 your machines at your own DATUM gateway. Prime rebuilds and checks every share, and credits accepted work 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.

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 (own-gateway hashrate doesn’t count); past that, new stratum connections are relayed to one of these pools. All five support DATUM and TIDES. Keep one as a failover.

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 iohzrd, the author of Ratum. 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

Relayed miners are paid by the pool they land on: see Relayed to other pools. Own-gateway miners are never relayed. Fees as each pool published them on 18 September 2026; check before you point hashrate.

Lazarus Pool.
The Bitcoin mining pool for Sia ASICs.
Get paid in the block itself.

One way in: DATUM

The pool right now.

If a block is found right now.

Coinbase outputs, largest first

One username: your address.

Which DATUM gateway

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

BLAKE2b machines that hash this chain.

BLAKE2b rigs you can rent, pointed at your own node.

Rig 2 premium

Rig 4 premium

RouteHash Rig

Rig 3 premium

HSBOX(Terminus🤖)

HS-BOX #1

Look up any address.

Who is hashing.

Every gateway on Prime.

Mining for the whole block.

Found by Lazarus, then the rest of the chain.

New to this? Start here.

Proof of work, in one minute

Why this chain uses BLAKE2b

What DATUM changes

How TIDES pays

Paid in the block itself

A pool that caps itself

From zero to mining, the DATUM way

Words you will meet

How your share becomes a payout.

You hash, the pool counts

The window decides the split

The block pays you directly

Other pools that speak DATUM and TIDES.

Riptide

CONVOY

B2Pool

Xorpool

iohzrd

Lazarus Pool.The Bitcoin mining pool for Sia ASICs.Get paid in the block itself.

One way in: DATUM

Coinbase outputs, largest first

Which DATUM gateway

stratum + datum sections of datum_gateway_config.json

Rig 2 premium

Rig 4 premium

RouteHash Rig

Rig 3 premium

HSBOX(Terminus🤖)

HS-BOX #1

Proof of work, in one minute

Why this chain uses BLAKE2b

What DATUM changes

How TIDES pays

Paid in the block itself

A pool that caps itself

From zero to mining, the DATUM way

Words you will meet

You hash, the pool counts

The window decides the split

The block pays you directly

Riptide

CONVOY

B2Pool

Xorpool

iohzrd

Lazarus Pool.
The Bitcoin mining pool for Sia ASICs.
Get paid in the block itself.

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