Monero vs Pirate Chain (ARRR): Which Privacy Coin Is More Private?

Introduction: Two Philosophies of Privacy

In the landscape of privacy-focused cryptocurrencies, Monero and Pirate Chain represent two fundamentally different approaches to the same goal: making financial transactions truly private. Monero uses a combination of ring signatures, stealth addresses, and confidential transactions to obscure sender, receiver, and amount information. Pirate Chain (ARRR) employs mandatory zk-SNARK shielded transactions derived from the Zcash codebase. Both claim to offer superior privacy, but the technical details, trade-offs, and real-world implications differ significantly.

This article provides an honest, technical comparison of both projects. We examine the cryptographic approaches, discuss the critical issue of trusted setups, compare adoption and ecosystem metrics, and help you understand which project offers stronger privacy guarantees and why.

Monero's Privacy Approach

Ring Signatures

Monero uses ring signatures to hide the true sender of a transaction. When you send Monero, your wallet constructs a ring of plausible signers by including decoy outputs (also called mixins) alongside the real output being spent. Currently, Monero uses a ring size of 16, meaning each transaction input references 16 possible outputs, only one of which is the real one being spent. An observer cannot determine which of the 16 outputs is the genuine source of funds.

Ring signatures provide plausible deniability. For any given transaction, there are 16 equally plausible senders. As the number of transactions on the network grows, the web of plausible deniability becomes increasingly complex, making statistical analysis more difficult over time.

Stealth Addresses

Every Monero transaction sends funds to a unique one-time stealth address derived from the recipient's public address. This means that even if you publish your Monero address, no one can scan the blockchain to find incoming transactions to that address. Each payment generates a new address that is unlinkable to the public address without knowledge of the recipient's private view key.

RingCT (Ring Confidential Transactions)

Since January 2017, all Monero transactions have used RingCT to hide transaction amounts. RingCT employs Pedersen commitments and range proofs to ensure that transaction amounts are hidden from public view while still allowing the network to verify that no new Monero is being created out of thin air. The current implementation uses Bulletproofs+ for efficient range proofs, significantly reducing transaction sizes compared to earlier versions.

Mandatory Privacy

A critical aspect of Monero's design is that all privacy features are mandatory. Every transaction uses ring signatures, stealth addresses, and RingCT. There is no option to send a transparent transaction. This uniformity is essential for privacy because it means that private transactions do not stand out from non-private ones. If privacy were optional, the act of choosing privacy would itself be informative to an adversary.

Pirate Chain's Privacy Approach

zk-SNARKs Shielded Transactions

Pirate Chain uses zk-SNARKs (Zero-Knowledge Succinct Non-Interactive Arguments of Knowledge) to provide transaction privacy. zk-SNARKs allow a sender to prove that a transaction is valid (that they have sufficient funds, that no coins are being created or destroyed) without revealing the sender, receiver, or amount. This technology was originally developed for Zcash and provides mathematically strong privacy guarantees.

In a zk-SNARK transaction, the entire transaction is encrypted on the blockchain. Validators can verify the transaction's validity using the zero-knowledge proof without learning anything about the transaction details. This approach provides extremely strong privacy from a purely mathematical perspective, as the proof reveals absolutely no information about the transaction beyond its validity.

Mandatory Shielding

Unlike Zcash, where shielded transactions are optional and most transactions remain transparent, Pirate Chain requires all transactions to be shielded. This addresses the major criticism of Zcash, that the optional nature of shielding allows deanonymization through the interaction between transparent and shielded pools. By making shielding mandatory, Pirate Chain ensures that all transactions benefit from the full privacy protection of zk-SNARKs.

Delayed Proof of Work

Pirate Chain uses a delayed proof-of-work (dPoW) security mechanism that notarizes its blockchain to the Komodo chain, which in turn is notarized to the Bitcoin blockchain. This mechanism provides protection against 51 percent attacks by making it prohibitively expensive to reorganize the blockchain beyond the most recent notarization point. While not directly related to privacy, this security mechanism is worth noting as it affects the overall trustworthiness of the network.

The Trusted Setup Problem

What Is a Trusted Setup?

The most significant difference between Monero and Pirate Chain from a security perspective is the trusted setup required by zk-SNARKs. The original zk-SNARK construction used by Pirate Chain (inherited from Zcash's Sapling protocol) requires a one-time ceremony to generate cryptographic parameters. During this ceremony, secret random numbers are generated and must be destroyed. If any participant in the ceremony retains these secret numbers, they could create counterfeit coins that would be undetectable by the network.

The Zcash trusted setup ceremony (Powers of Tau and Sapling MPC) involved hundreds of participants, and the security claim is that the setup is safe as long as at least one participant honestly destroyed their secret. This is a reasonable assumption, but it is fundamentally different from the cryptographic assumptions underlying Monero's privacy, which do not require trusting any ceremony participants.

Why This Matters

The trusted setup creates a category of risk that does not exist in Monero. If the trusted setup was compromised, an attacker could silently inflate the Pirate Chain supply without detection. Because transactions are fully encrypted, there is no way to audit the total supply of ARRR on the blockchain. You must trust that the ceremony was conducted correctly and that the toxic waste was destroyed.

Monero, by contrast, uses cryptographic primitives that do not require a trusted setup. The discrete logarithm assumptions underlying ring signatures and Pedersen commitments are well-studied and do not depend on any ceremony. While Monero's amounts are hidden by RingCT, the overall supply can be verified through mathematical auditing of the commitment scheme, providing a transparent supply guarantee that Pirate Chain cannot offer.

Zcash's Evolution and Pirate Chain's Position

It is worth noting that the Zcash project has been working on newer zk-SNARK constructions that eliminate the need for a trusted setup, such as Halo 2. However, Pirate Chain is based on an earlier version of the Zcash codebase that uses the Sapling protocol with its trusted setup. Migrating to newer constructions would require significant development effort, and as of 2026, Pirate Chain still relies on the original trusted setup parameters.

Adoption and Liquidity Comparison

Market Presence

Monero significantly outpaces Pirate Chain in adoption by virtually every measurable metric. Monero consistently ranks in the top 30 cryptocurrencies by market capitalization and is listed on numerous exchanges worldwide. Pirate Chain ranks much lower and is available on a limited number of exchanges, primarily smaller or decentralized platforms.

Liquidity is a practical concern for privacy coin users. Higher liquidity means tighter spreads, lower slippage, and the ability to convert larger amounts without significantly impacting the market. Monero's liquidity is orders of magnitude higher than Pirate Chain's, making it more practical for both small and large transactions.

Exchange Availability

Despite delistings from some centralized exchanges due to regulatory pressure, Monero remains widely available on major platforms and through decentralized exchanges and swap services like MoneroSwapper. Pirate Chain's exchange availability is significantly more limited. This difference in availability directly impacts usability, as users need convenient on-ramps and off-ramps to use a cryptocurrency effectively.

Merchant Adoption

Monero has established merchant adoption through payment processors and direct integrations. Hundreds of merchants and services accept Monero, ranging from VPN providers to hosting companies to physical goods retailers. Pirate Chain's merchant adoption is minimal by comparison, limited to a handful of niche services. For a privacy coin to be useful, it must be accepted where you want to spend it, and Monero has a significant advantage in this regard.

Developer Activity and Ecosystem

Development Resources

Monero has one of the most active development communities in the cryptocurrency space. The core codebase receives regular contributions from dozens of developers, with major protocol upgrades occurring roughly annually. The Monero Research Lab conducts ongoing academic research into privacy-enhancing technologies, and the project's open funding mechanism (Community Crowdfunding System) supports a wide range of development and research efforts.

Pirate Chain's development activity is significantly more modest. The project relies primarily on the upstream Komodo codebase with Zcash privacy features. While the community maintains the project and implements necessary updates, the scope and pace of original research and development is substantially lower than Monero's. This difference has long-term implications for the projects' ability to adapt to new threats and implement improvements.

Security Auditing

Monero's codebase has been the subject of multiple professional security audits, including reviews of Bulletproofs, Bulletproofs+, and the RandomX mining algorithm. These audits are funded by the community and their results are published publicly. Pirate Chain inherits the security auditing of the Zcash Sapling protocol but has not independently commissioned audits of its own codebase to the same extent.

Community Size and Resilience

Monero's community is one of the largest and most dedicated in the cryptocurrency space. Active forums, social media channels, and development platforms host thousands of engaged participants who contribute to testing, documentation, translation, and advocacy. This large community provides resilience against regulatory pressure, development challenges, and market volatility.

Pirate Chain has a smaller but passionate community. The project's supporters are vocal advocates for its privacy technology and often point to the mathematical superiority of zk-SNARKs as evidence of better privacy. However, the smaller community means fewer resources for development, fewer nodes securing the network, and less collective expertise to draw upon when challenges arise.

Privacy Analysis: Which Is More Private?

Theoretical Privacy

From a purely theoretical perspective, zk-SNARKs provide stronger mathematical privacy guarantees than ring signatures. A zk-SNARK proof reveals exactly zero information about the transaction beyond its validity, while ring signatures provide plausible deniability among a set of decoy participants. In theory, given infinite computing power, an adversary might be able to perform statistical analysis on ring signatures to narrow down likely senders, while zk-SNARK proofs remain information-theoretically secure.

Practical Privacy

In practice, the picture is more nuanced. Monero's privacy has been extensively tested through real-world attacks, research papers, and adversarial analysis. The ring signature approach, while not perfect, has proven robust when combined with Monero's other privacy features and the mandatory nature of privacy. The ring size of 16 provides strong plausible deniability, and ongoing research continues to improve the statistical properties of decoy selection.

Pirate Chain's zk-SNARK privacy is theoretically stronger but comes with the trusted setup caveat. If the trusted setup was compromised, the entire privacy model could be undermined without anyone knowing. Additionally, Pirate Chain's smaller transaction volume means a smaller anonymity set in practice. Even with perfect cryptographic privacy, metadata analysis (timing, amounts entering and leaving exchanges) can provide deanonymization vectors, and these vectors are easier to exploit in a smaller network.

The Verdict

Neither project provides perfect privacy, and the comparison involves trade-offs that depend on your threat model. If you trust the Zcash trusted setup ceremony and your primary concern is cryptographic strength of individual transaction privacy, Pirate Chain has a theoretical edge. If you prefer proven cryptographic assumptions without trusted setups, value a large and active anonymity set, and want the practical benefits of wide adoption and liquidity, Monero offers stronger real-world privacy.

For most users, Monero's combination of strong privacy, large anonymity set, wide adoption, active development, and absence of trusted setup requirements makes it the more practical and trustworthy choice. The theoretical advantage of zk-SNARKs does not outweigh the practical advantages of Monero's established ecosystem for most threat models.

Conclusion

Monero and Pirate Chain both make meaningful contributions to the privacy cryptocurrency space, but they differ significantly in their approaches, trade-offs, and real-world utility. Monero offers battle-tested privacy without trusted setup requirements, backed by a large community and extensive adoption. Pirate Chain offers theoretically stronger cryptographic privacy but with meaningful trust assumptions and limited practical adoption.

At MoneroSwapper, we believe that privacy technology should be both mathematically sound and practically useful. Monero's combination of strong privacy guarantees, wide availability, and active development makes it our platform of choice for private cryptocurrency exchange.