In late January, a top-20 DeFi protocol announced its migration to the OP Stack, citing “scalability and alignment with the Superchain vision.” The news was met with applause from the optimistic rollup community. But as I read the announcement, I felt a familiar unease—the same feeling I had in 2017 when I audited EtherTrust's smart contracts and found a reentrancy vulnerability buried under layers of marketing hype. That time, the vulnerability could have drained $4.2 million. This time, the vulnerability is structural, not just in code, but in the philosophy of how we build trust in Layer 2. The OP Stack is winning the rollup war, but at what cost to the very principles of decentralization that made Ethereum the settlement layer of choice?
Context: The Superchain Dream and the ZK Counterpoint
The Optimism Collective introduced the OP Stack as a modular, open-source framework for launching optimistic rollups. The pitch was simple: by sharing a common sequencer set, a governance token (OP), and a unified bridge, any project can launch a chain that benefits from Ethereum’s security while enjoying low fees and fast finality. The Superchain is the vision of a network of interoperable, Ethereum-aligned L2s, all built on the same stack. As of early 2025, over 40 chains are live on the OP Stack, including major names like Base, Frax, and now the latest DeFi whale.
On the other side, the ZK Stack—pioneered by zkSync and others—offers a different promise: validity proofs that eliminate the need for a 7-day withdrawal window, and an architecture that allows for asynchronous, independent chains. The ZK Stack is technically more complex, but its proponents argue it is more secure and less reliant on game-theoretic assumptions about honest fraud provers.
Yet the market is voting with its feet. OP Stack chains now hold more than 60% of total L2 TVL, excluding Ethereum itself. The narrative is that ZK is the future, but OP is the present. But as I watch this migration frenzy, I cannot shake the memory of 2021’s NFT mania, where the most hyped projects—those with the loudest marketing—were often the first to collapse when the market turned. The OP Stack is the loudest marketing machine in the rollup space. But beneath the surface, what philosophical compromises are we making?
Core: The Centralization of the Stack
Let me be clear: I am not arguing that OP Stack chains are insecure in the traditional sense. The technology is battle-tested, and the Optimism team has done remarkable work. But the real risk is not at the execution layer—it is at the governance layer. The OP Stack is governed by the Optimism Collective, which controls the upgrade mechanism for the entire stack. When a chain joins the Superchain, it effectively cedes control over its sequencer and bridge logic to a collective that is, at its core, a single token-based DAO.
I spent three months in 2022 analyzing the governance of the top 20 DeFi protocols for my "Long Winter" manifesto. The pattern was clear: projects that centralized governance to speed up decision-making consistently failed to survive bear markets. They lacked the resilience to absorb shocks because the community had no real power. The OP Stack’s governance model is not a radical departure from that. The Optimism Collective has a “Citizens’ House” and a “Token House” to balance power, but in practice, the Token House—which requires OP tokens to vote—holds the ultimate authority. And OP tokens are concentrated among early investors, the Optimism team, and venture funds. Based on the last available snapshot, the top 10 addresses control over 40% of the voting power.
This is not a hypothetical risk. In January 2024, a governance proposal to upgrade the OP Stack’s fault proof system passed with 99% approval, but only 8% of the circulating supply voted. The proposal was technically sound, but the process lacked the broad, decentralized participation that the rollup narrative promises. If a malicious proposal—or a buggy upgrade—were to pass, every chain on the Superchain would be affected simultaneously. There is no escape hatch; the OP Stack is a shared foundation, and a crack in the foundation would ripple through the entire ecosystem.
During my time as a volunteer educator in the Compound governance working group during DeFi Summer, I saw firsthand how a small group of whales could steer a protocol’s direction. The same dynamic is now playing out at the infrastructure level. The OP Stack is not a public good—it is a product controlled by a single collective. The Superchain is not a network of sovereign chains; it is a franchise network where each chain pays the “franchise fee” of using a shared sequencer set and governance. This is not necessarily evil—it is efficient. But it is not true decentralization. Trust is earned, not mined. And the OP Stack demands an enormous amount of trust in a single governance body.
Contrarian: The Pragmatic Counterargument
Of course, the ZK Stack is not immune to these criticisms. zkSync’s governance is also token-based, and its early-stage prover network is even more centralized. The difference is that the ZK Stack’s architecture allows for independent upgrade paths—each chain can deploy its own verifier contracts and choose its own governance. The OP Stack, by contrast, forces a shared infrastructure that can only be upgraded through the Optimism Collective.
But the pragmatic argument is that efficiency matters more than purity. The OP Stack has attracted more projects because it is easier to deploy, offers immediate liquidity through the shared bridge, and has a strong brand. The ZK Stack, for all its technical elegance, is harder to use and slower to adopt. In a bull market, speed wins.
I understand that argument. I have made it myself in the early days, when I wrote about the “Soul of Code” and argued that market adoption is the ultimate validator of a protocol. But I have also seen the consequences of prioritizing speed over principle. The 2022 collapse of Terra showed that a tightly controlled, high-growth L1 could implode overnight. The OP Stack is not Terra, but it shares the same vulnerability: a single point of governance failure. The Superchain’s security relies on the integrity of the Optimism team, and while I have no reason to doubt their integrity, the entire crypto industry was built on the premise of “don’t trust, verify.” The OP Stack asks us to trust a collective rather than verify the code.
Soul in the machine. The OP Stack is building a machine for efficient scaling, but it is losing the soul of blockchain—the idea that no single entity should have the power to change the rules of the game. The ZK Stack, with its emphasis on validity proofs and independent sovereignty, is closer to that soul, even if it is less polished.
Takeaway: The Metric of Success
I am not here to declare that the OP Stack is bad or that ZK is the only path. I am here to remind us that the metrics we use to measure success—TVL, number of chains, transaction throughput—are deceptive. They tell us about adoption, but not about resilience. The real test of any Layer 2 will come in a bear market, when liquidity dries up and governance participation plummets. Will the OP Stack’s chains survive a coordinated attack on the governance layer? Will the ZK Stack’s independent chains be able to weather a crisis without a central authority to bail them out?
Based on my experience auditing failed projects, the ones that survived were those that had a clear, uncompromised philosophical foundation. The ones that collapsed were those that optimized for growth at the expense of integrity. Conscience over consensus. The OP Stack has achieved consensus among developers and investors, but it has not yet earned the conscience of a truly decentralized network.
As we watch the next wave of migrations, I urge builders to ask not just “Can I launch quickly?” but “Can I govern freely?” The answer will determine whether the Superchain becomes a utopia of interoperable finance or a hierarchy of dependent nodes. DeFi must mature. And maturity means choosing the harder path that preserves sovereignty, not the easier path that builds a single point of failure.
The OP Stack is winning the race today. But the race is long, and the finish line is not TVL—it is trust.
