Arcium Hits 1 Million Confidential Computations as ZINC Breaks Into Solana's Top 3 by Fee Revenue

A protocol that performs computations on encrypted data, keeping inputs private even during processing, has crossed a meaningful threshold on Solana, and an application built on it is now generating more fee revenue than most of the network's established names.

Arcium announced on June 9 that its mainnet has processed over 1 million confidential computations: operations where data remains encrypted throughout processing, not just in transit. The network now handles more than 200,000 such computations per day, a figure Arcium claims is roughly 20 times the throughput of its nearest competitor, according to the company's announcement. Total mainnet transactions are approaching 4 million.

The milestone matters partly on its own terms: confidential computing on a public blockchain has long been a research problem rather than a production one. The commercial signal sitting on top of the infrastructure is what gives it weight.

ZINC Displaces Established Protocols on Fee Revenue

ZINC, a protocol powered by Arcium, ranked third in 24-hour fee revenue across all Solana protocols on DefiLlama within two weeks of its launch. That list is typically led by the network's highest-volume venues: Raydium, Jito JTO$0.601-1.6%, and similar deep-liquidity protocols. A two-week-old application breaking into that tier is unusual by any recent comparison.

The fee volume behind the ranking is verifiable on-chain. Arcium's Dune dashboard for ZINC shows 310,895 SOL in total protocol volume since launch and 31,089 SOL in protocol revenue, a 10% fee on all volume. At the same time, 801,863 of Arcium's 1 million total confidential computations are attributable to ZINC alone, meaning a single application accounts for the majority of the infrastructure's compute load.

Per the announcement, $18 million in capital has been deployed into ZINC, generating $1.8 million in total fees. The Dune dashboard shows 2,521 unique holders and 4,118 cumulative participants.

ZINC operates as what the project describes as a privacy-first staking and prize mechanism: users deposit SOL, the protocol processes the underlying logic through Arcium's confidential compute layer so individual positions remain private, and fees fund a buyback-and-burn mechanism alongside a prize pool. The Dune data shows 146,652 ZINC tokens burned through buyback operations and 617 SOL currently in the prize pool. The first major application built on confidential computing infrastructure used it to build a financial product with real fee generation, not a privacy narrative.

How Arcium's MPC Network Processes Data Without Exposing It

Arcium uses multi-party computation (MPC), a cryptographic technique that lets a network of nodes jointly execute a computation without any single node seeing the underlying data. The practical effect is that a smart contract can process private inputs (trading positions, identity attributes, financial data) without exposing them on a public ledger.

The 17-person team behind Arcium has published 79 peer-reviewed cryptography papers and raised more than $15 million, per the announcement. The broader ecosystem of applications building on the network has collectively raised an additional $7.5 million, with 12 apps now live or in development across 7 categories. Among them is Umbra, which has seen $155 million committed to its ICO and $3 million in volume over roughly two and a half months. Arcium also describes a protocol called Blackthorn for real-time AI inference on encrypted data, targeting finance, healthcare, and enterprise use cases.

The network's ARX governance token has been added to Coinbase's asset listing roadmap, though no timeline has been specified.

ZINC Enters a Fee Landscape Dominated by High-Frequency Trading Venues

Solana applications generated approximately $91 million in revenue in May 2026, leading all blockchains for the month. The bulk of that came from high-frequency trading venues and staking infrastructure. ZINC's early ranking alongside those protocols is notable because it comes from a category, confidential computing applications, that has not previously been a driver of Solana fee revenue.

"Confidentiality can become a competitive advantage rather than merely a protective feature," Arcium said in its announcement. ZINC's first two weeks suggest at least one application has found a market willing to pay for that property.