Dogecoin developers debate security reliance on Litecoin and merge mining

Dogecoin’s security model has become the subject of renewed debate after Dogecoin Foundation developer Paulo Vidal questioned whether the cryptocurrency should continue to depend on other networks for its blockchain security.

Focus on merge mining and security ties

Vidal stated on X that Dogecoin, launched in 2013 as an open-source cryptocurrency featuring the Shiba Inu dog meme, does not operate independent mining and primarily incentivizes merge mining with other blockchain networks, most notably Litecoin. According to Vidal, this arrangement links Dogecoin’s blockchain security to that of Litecoin, raising long-term questions about its autonomy.

“Should Dogecoin ultimately be able to secure itself, or should it always depend on Litecoin?” Vidal questioned, prompting wide engagement among developers and the Dogecoin community.

Merge mining, also known as Auxiliary Proof of Work (AuxPoW), enables a miner to use the same computational resources to mine multiple cryptocurrencies simultaneously, provided they use similar proof-of-work algorithms. For Dogecoin, this means that miners can validate transactions and earn rewards for both Dogecoin and another Scrypt-based coin without splitting their hash power.

Mini dictionary: Merge mining (AuxPoW) allows a miner to contribute hash rate to more than one blockchain at a time, thus increasing efficiency and overall network security for participating coins without incurring extra cost or energy consumption.

Developers offer differing perspectives

While Vidal’s comments raised concerns about overreliance on Litecoin, another developer, known on X as “Chromatic X,” disagreed with this view. Chromatic X argued that Dogecoin’s security is not exclusively tied to Litecoin but to all Scrypt-based networks that support merge mining.

Dogecoin does not depend on Litecoin. It depends on all merge-mined L1 Scrypt coins, Chromatic X emphasized in reply.

Scrypt is a proof-of-work algorithm used by several cryptocurrencies. Aside from Dogecoin and Litecoin, coins such as Namecoin also utilize Scrypt and may participate in merge mining. Nevertheless, Dogecoin and Litecoin together hold the highest share and profitability among Scrypt-based merge-mined coins.

Dogecoin co-founder Billy Markus, known in the crypto community as Shibetoshi Nakamoto, joined the discussion, affirming that Dogecoin offers the highest profitability for Scrypt miners. Markus noted that Dogecoin’s auxiliary proof-of-work system allows users to mine Dogecoin alongside any Scrypt coin.

Doge is the most profitable Scrypt coin to mine. Auxpow just allows you to mine it with any other Scrypt coin, Markus conveyed to the community.

Potential risks and the autonomy debate

When Dogecoin and Litecoin launched merge mining in August 2014, Dogecoin’s relatively lower hash rate made it more vulnerable to attacks where a single miner could theoretically control over half the network. Merge mining was adopted to address these security concerns and remains a core feature to this day.

The ongoing discussion now centers on whether Dogecoin should strive for self-sufficient security or continue leveraging merge mining benefits. Chromatic X described the desire for Dogecoin to operate independently as a “philosophical purity” stance, while some in the broader Dogecoin community suggest the issue could warrant consideration as the network matures.

Dogecoin Foundation director Timothy Stebbing pointed out that most Scrypt-based cryptocurrencies rely on Dogecoin’s ongoing issuance to remain a viable option for miners. Moving away from merge mining could therefore impact the wider ecosystem of Scrypt coins, in addition to Dogecoin’s own security model.

As the debate continues without a definitive resolution, the future direction of Dogecoin’s security model remains a topic of discussion among developers and the broader cryptocurrency community.