Litecoin & Dogecoin: Why They're Mined Together

If you've ever seen a mining platform advertise "mine LTC, get DOGE too," it can sound like a bundled marketing gimmick. It isn't — it's a real technical mechanism called merged mining, also known as AuxPoW (Auxiliary Proof of Work), and it's been part of Dogecoin's design since 2014.

The shared ingredient: Scrypt

Litecoin and Dogecoin both use the same underlying hashing algorithm, Scrypt — unlike Bitcoin, which uses SHA-256. Because the two networks share the same proof-of-work puzzle format, hardware built to mine one can, with the right software support, simultaneously check its work against both chains at once.

How merged mining actually works

When a miner finds a valid solution for a Litecoin block, that same solution is checked against Dogecoin's (lower) difficulty target too. If it also clears Dogecoin's bar, the miner submits it as a valid Dogecoin block as well — essentially getting a "free" shot at a DOGE block reward using hashrate that was already being spent on LTC. No extra computational work is done; the same hash just gets checked against two difficulty targets instead of one.

This is why Dogecoin, despite being created partly as a joke in 2013, has one of the most secure networks of any proof-of-work coin today — it inherits Litecoin's entire hashrate rather than needing its own dedicated mining base.

What this means if you're mining LTC

• Your Litecoin hashrate doesn't get split or reduced to also earn DOGE — merged mining adds a second reward stream rather than competing with the first.
• Not every mining pool or platform supports AuxPoW submission; it has to be explicitly configured on the pool side to claim both rewards.
• DOGE's block time is much faster than LTC's (about 1 minute vs. 2.5 minutes), so the auxiliary DOGE rewards can arrive more frequently even though they're riding on the same LTC hashrate.

The takeaway

"Dual mining" of LTC and DOGE isn't a marketing trick layered on top of mining — it's a real consequence of the two chains sharing a hashing algorithm and Dogecoin's protocol explicitly supporting merged-mining submissions. If a platform says your Litecoin hashrate also produces Dogecoin, that's a legitimate and well-established mechanism, not a conflict of interest between the two payouts.