Course mapModule 5 · What Is Merged Mining? (AuxPoW, Plain English)
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M1Power On5 live What Does a Bitcoin Miner Actually Do? What Is a Hash? How Do Miners Make Money? Can You Still Mine Bitcoin at Home? CPU vs GPU vs ASIC: Why Your PC Can’t Compete
M2The Iron5 live What Is an ASIC Miner? Hashrate, Watts, and J/TH: The Only Three Numbers That Matter What Is a Bitaxe? How Loud Is an ASIC Miner, Really? How Long Does a Miner Stay Profitable?
M3The Network5 live What Is Mining Difficulty? What Is Network Hashrate (and Why Every Chart Disagrees)? Why Blocks Take 2 Minutes or 40: Luck and Variance What Is a Mining Pool? What Is the Halving (and What It Does to Miners)?
M4The Money1 live What Is Hashprice? The Mining Profitability Formula (There Is Only One)soon What Power Price Kills Your Rig?soon How Long Does It Take to Mine 1 Bitcoin?soon Transaction Fees: The Half of Revenue Nobody Modelssoon
M5The Scrypt Lane3 live What Is Scrypt Mining?soon What Is Merged Mining? (AuxPoW, Plain English) How Long Does It Take to Mine 1 Litecoin? Antminer L7 vs L9 vs L11: Which Scrypt Miner Makes Sense Can You Mine Dogecoin Directly?soon
M6Home Opssoon Amps, Breakers, and 240V: Can Your Wiring Run a Miner?soon Making a Miner Livable: Noise and Heat Controlsoon Heating Your Space With a Minersoon Buying a Used ASIC Without Getting Burnedsoon Solo Mining: The Honest Lottery Mathsoon
M7Operator Gradesoon What Is Miner Capitulation?soon Hash Ribbons: Reading Hashrate Crossessoon The Puell Multiple: Miner Revenue vs Its Own Historysoon Fee Percentiles: Forecasting Revenue Like an Operatorsoon Mining Stress and Difficulty Pressure: What Our Composites Watchsoon Timing the Iron: Buying Rigs Off the Cycle Datasoon

What Is Merged Mining?

AuxPoW in plain English — why one watt in the scrypt lane pays in two coins, with the live receipts.
loading live data…
One machine, one pulled drawer, two or more paychecks. Your scrypt ASIC pulls drawers in Litecoin's library — one scrypt hash of the LTC block header per drawer — and Dogecoin accepts that same hash as proof for its own blocks. Nothing is split: the DOGE is added on top of the LTC, for the same electricity.
Litecoin hashrate
2.62 PH/s
the parent chain · static fallback as of 2026-09-25
Dogecoin hashrate
2.53 PH/s
the aux chain · static fallback as of 2026-09-25
DOGE / LTC ratio
~97%
of LTC-scale hash also stamping DOGE · static fallback as of 2026-09-25

The 30-second version

You don't split anything. One hash is checked against two targets, and each chain pays its full reward when its own target is met. Dogecoin pays full price for a find made in Litecoin's library. And if your machine points at a major LTC pool, you are already merged mining — there is no switch to flip.

How it actually works: one header, two targets

one scrypt hash the LTC header checked checked vs LTC target harder met → full LTC vs DOGE target ~2.4× easier met → 10,000 DOGE
Three outcomes for every pulled drawer — neither target met, DOGE only, or both: a hash that clears Litecoin's harder target always clears Dogecoin's too. DOGE’s easier target is why your shares hit DOGE blocks ~2.4× as often.

The plumbing, one level down: the Dogecoin block's hash is committed inside the Litecoin block's coinbase transaction (the miner's own payout transaction), and the Dogecoin block carries the LTC header plus merkle branches as its proof-of-work package — auxiliary proof of work, AuxPoW. Dogecoin's own nodes validate that package under Dogecoin's own rules.

The part everyone gets backwards: Litecoin needed no change and knows nothing about Dogecoin. The consensus change lives entirely on the aux side. The same coinbase commitment can carry a merkle root over several aux chains at once, which is how one LTC work unit can stamp DOGE and a handful of smaller coins simultaneously.

LTC difficulty
93.3M
static fallback as of 2026-09-25
DOGE difficulty
38.5M
static fallback as of 2026-09-25
DOGE target is
~2.4× easier
exactly the 2.5-min vs 1-min cadence at near-equal hashrate

Why Dogecoin begged for this: the 2014 story

Through 2014, Dogecoin's block reward was halving every 100,000 blocks on schedule, its hashrate was sliding with it, and a 51% attack was drifting into hobbyist-budget territory. The community's answer was radical: stop defending the chain alone and rent nearly the whole scrypt fleet instead. Dogecoin 1.8 shipped AuxPoW, it activated at block 371,337 on September 11, 2014, and within about a month Dogecoin's hashrate rose roughly fifteenfold (per Binance Research's case study) as the big LTC pools switched merged mining on. It has tracked Litecoin's hashrate ever since — the ratio tile above is the 12-years-later receipt.

Dogecoin blocks stamped under merged mining so far: ~6,017,000 (current height minus 371,337 — recomputed live at load; fallback dated 2026-09-25)

What it pays

This page deliberately shows no revenue numbers — they move by the minute, and stale money math is how mining blogs lie without technically lying. The shape is what matters: for scrypt rigs the DOGE side is not a rounding error, it is a major share of the wage, and which side dominates flips with relative prices. Run your machine through the merged mining calculator for the live split, or see the combined number defined in the hashprice lesson — both legs, each against its own chain's hashrate.

Who else rides the parent hash

As of September 2026, large pools stamp several smaller scrypt AuxPoW chains onto the same Litecoin work — ViaBTC's merged-mining page lists Bellscoin, Pepecoin, Junkcoin, Luckycoin, Dingocoin and others alongside DOGE. Three honest hedges: the list is per pool and churns; the extra coins are small, thinly traded markets; and none of them cost you a single extra hash. Check your own pool's merged-coins page before counting any of it as income.

What you give up

At the hash level: nothing. No extra power draw, no hashrate penalty, no reward reduction on either chain — the drawers you were already pulling simply get checked against a second chain's stamp. The real costs are operational fine print: every pool decides which merged coins it credits, in what currency, with what fees and withdrawal minimums; small coins can sit below dust thresholds; and solo merged mining means running both full nodes plus AuxPoW-aware work assembly — a project, not a checkbox.

Setting it up (you probably already did)

Pool path: point the ASIC at one stratum URL from any major LTC pool — the pool assembles the AuxPoW work server-side, and your only job is reading its payout policy. Solo path: honestly discouraged for anyone asking this page's question; the how-long-to-mine-1-LTC lesson has the lottery math that explains why.

FAQ

Does merged mining split my rewards?
No. One hash is checked against both targets independently; each chain that's met pays its full reward. The DOGE side is added on top, never subtracted.
How do I set up merged mining?
On a pool: you almost certainly already have — work assembly is server-side. Check the pool's payout page for which merged coins it credits and at what minimums. Solo: both full nodes plus AuxPoW work assembly — a project, not a checkbox.
Why does Dogecoin allow this?
Security it couldn't fund alone. From block 371,337 (September 2014) Dogecoin accepted Litecoin's proof-of-work as its own, its hashrate rose ~15× within a month (per Binance Research), and it has tracked LTC's ever since — the live ratio above is the ongoing receipt.
Can I merge mine other coins with Litecoin?
Some pools stamp Bellscoin, Pepecoin, Junkcoin and others onto the same work at zero extra hash cost (per ViaBTC's merged-coins page, September 2026). Pool-dependent, thin markets — verify on your pool's own page.
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Next lesson → Module 5 · The Scrypt Lane
How Long Does It Take to Mine 1 Litecoin?
Computed live from our own node for real machines — plus the Dogecoin you collect while you wait.
Source: hashrate, difficulty and block heights from BasinTwo’s own litecoind and dogecoind via the free /api/chain feeds. History: Dogecoin 1.8 AuxPoW activation at block 371,337 (Sep 11, 2014); the ~15× hashrate figure is Binance Research’s. The additional merged-coin list reflects pool pages as of September 2026 and changes. Not financial advice.