BIP-110 is a Bitcoin proposal to restrict non-financial data in transactions for a year. It asked for 55% of hashrate to signal support and peaked near 2.6%, and nodes running it began rejecting blocks that did not signal at height 961,632 on 8 August 2026. That is the moment the chain split. This chain is the BIP-110 branch; the majority chain carried on under SHA-256d, unaffected.
The proof-of-work change is a separate, later decision on this branch. On 30 August 2026 it moved from SHA-256d to BLAKE2b with a Sia-style header: block 961,639 was the last SHA-256d block and 961,640 the first BLAKE2b one. Everything else is still Bitcoin — the 21 million cap, the halving schedule, script, addresses, and every block of history before the split.
So “BIP-110” is what people call this chain, but BLAKE2b is what decides your hardware. Any ASIC built for Siacoin mines here on stock firmware; no SHA-256 machine can produce a valid share at all. Because the pre-split history is shared with Bitcoin, generate a fresh address for this chain and keep SHA-256 keys well clear. Lazarus Pool mines it with TIDES payouts in the coinbase and pays a subsidy to DATUM miners.
Bitcoin (XBT / BTCB2) · BLAKE2b · DATUM · TIDES · Proverbs 11:1
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.
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.
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
Straight from Prime and the node. Refreshes every ten seconds.
Hashrate by path
DATUM by gateway
DATUM and public stratum match the pool figure above. Solo is the dedicated ports — not in that figure and not in the TIDES window.
Of DATUM hashrate only — same live credit as the chart to the left. Largest gateways listed; the rest are in Other.
Prime is not answering right now. Window, gateway and payout figures are the last ones it published.
Next payout
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.
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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
Two ways in, one rule. Your stratum username is the address that gets paid.
Recommended · no fee · paid the bonus
Your own DATUM gateway
0%
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
All or nothing
Solo
7.5%
No window, no sharing. Find a block and the whole reward is yours less the fee; find nothing and you earn nothing.
Setup below
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.
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.
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.
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.
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.
stratum + datum sections of datum_gateway_config.jsonserver=1 and a cookie or RPC user the gateway can read.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.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.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.| 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: truepool_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 |
Solo is a bet, not a wage. Your shares buy you nothing — they only prove you are working. When one of them is a block, that block’s entire reward goes to the address in your username, less our fee, paid in that block’s own coinbase. Until then you earn nothing, however long you mine. Pooled mining pays you a steady share of every block the pool finds; solo pays you rarely and enormously. Most miners should stay pooled.
Solo work is kept out of the TIDES window on purpose. Point some miners at solo and others at the pooled ports if you want both; the pooled ones keep earning their window share while the solo ones chase a whole block. Your solo shares will never appear under Miners or in Next payout — look under Solo instead.
Already running your own node? Then solo mine against it directly — you do not need us for that, and you should not pay us for it. These ports are for miners who want to solo without running a node.
Buy a miner
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.
Could not load the catalog. Open BT-Miners’ BTCB2 collection directly.
Lazarus Pool is not responsible for BT-Miners customer support or quality of service.
Your stats
Hashrate, window share, next-block payout and every coinbase that has paid you. Each address also has its own page at /miner/<address>.
Miners
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.
Online now
Relayed to other pools
Recently seen · not hashing right now
Gateways
Every DATUM gateway connected right now, ours included, plus any that have found a block even if they are offline. Block counts are lifetime.
Solo
Separate from the pool’s window — none of this work is paid a share of anything.
Hashing now
Blocks found solo
Blocks & payouts
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
Learn
Six short answers, then the long versions if you want them. No account, no sign-up: mining here only ever needs a payout address.
Miners race to find a number that makes a block’s hash fall below a target. It is pure trial and error, so the only way to win more often is to do more hashes. That cost is what makes rewriting the chain expensive. Difficulty retargets so blocks keep arriving at a steady pace however much hashrate joins.
How the pool fits inAt block 961,640 (30 August 2026) this chain changed its proof of work from SHA-256d to BLAKE2b. Supply, halvings, addresses and every earlier block are unchanged. BLAKE2b is what Siacoin ASICs were built for, so that hardware mines here.
The fork, and BIP-110On an ordinary pool, the pool decides what goes in the block. With your own DATUM gateway and Bitcoin Knots node, you build the block template and the pool only coordinates the reward. That keeps block-building spread across many hands. Here it costs 0% and earns a bonus.
The DATUM subsidyTIDES keeps a rolling window of accepted shares worth about eight network-difficulties of work. When the pool finds a block, every address holding work in the window is paid its proportion. There are no rounds to hop between and nothing resets when a block lands.
TIDES explainedThe pool never holds your coins. Each payout is an output of the block’s own coinbase, sent to your address. There is no balance, no threshold and no withdrawal, and anyone can check every payout on chain.
Non-custodial payoutsThe public stratum is held to 15% of network hashrate. Past that, new stratum connections are relayed to other pools and paid there. Miners on their own DATUM gateway are never counted, because building your own templates is not what centralizes a chain.
The 15% self-capserver=1 and a cookie or RPC user your gateway can read. Your node is what chooses the transactions in your blocks.mining.pool_address to your address.address.worker.How it works
For newcomers and operators alike. Your ASIC never sees any of this — it hashes a plain BLAKE2b header.
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 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.
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
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.
| 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 |
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.
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%.
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.
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.
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.
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.