Emmanuel Godwin retweetledi
Eugene Ludwig served as the 27th Comptroller of the Currency. That office regulates all national banks in the United States. Ludwig knows exactly how the system works, where it breaks down, and what it costs the institutions that operate inside it.
He is now building Cari Network on ZKsync.
That single fact is worth more than any theoretical argument about the future of finance. A former top U.S. banking regulator, with five regional banks and over $600 billion in combined deposits behind him, chose to build on this infrastructure rather than anywhere else. That is not a bet on blockchain in the abstract. It is a specific architectural decision made by people who have spent careers inside the system they are now rebuilding.
The problem those institutions are solving is concrete. Correspondent banking requires banks to pre-fund settlement positions in advance across every corridor they operate in. Globally, that figure sits at $27 trillion in capital held idle, not invested, not deployed, simply parked to guarantee that settlement will clear when needed. Global deposits exceed $100 trillion and annual transaction volumes cross $3.7 quadrillion. The infrastructure underneath all of that activity was built before the internet existed and has never been replaced, only patched.
The reason regulated institutions have not moved to blockchain infrastructure is not unfamiliarity. It is that the available architectures could not meet the minimum requirements for institutional operation. Transaction flows between banks carry commercially sensitive information that cannot be visible on a shared public ledger. Execution environments must be controllable and configurable to meet compliance obligations that vary by jurisdiction and counterparty. Settlement must be self-verifying, meaning the correctness of every transaction must be provable without relying on any third party to attest to it. And institutions cannot operate in isolation. They need the counterparties and liquidity that make the network useful in the first place.
Public blockchains resolve some of these. They fail others. A purpose-built architecture was the only path forward.
This is what @ZKsync built with Prividium, and it is why Cari Network chose it.
On Prividium, each institution runs an entirely separate environment. Nothing about one institution's activity is visible to another. The proof that settlement occurred correctly, generated through zero-knowledge cryptography, is what posts to Ethereum. The underlying transaction never leaves the institution's environment. Regulators get scoped access to what they are entitled to examine. The settlement record on Ethereum is cryptographically final and requires no trusted party to validate it.
Cari Network is not alone. Deutsche Bank is building Memento ZK Chain on the same infrastructure. First Abu Dhabi Bank is live on ADI Chain. BitGo has integrated institutional custody with Prividium. More than 35 institutions are in active evaluation. The adoption list reads like a directory of institutions that have done the technical and compliance work and reached the same conclusion independently.
Each institution that joins does not simply add its own volume. It creates direct settlement corridors with every other institution already on the network. The coordination capacity of the system expands with every addition in a way that a fragmented correspondent banking model structurally cannot.
$ZK is the only native asset of the ZKsync network. Its supply is fixed at 21 billion with no inflation. Governance operates through the Token Assembly, where holders vote on protocol decisions, the Security Council, which conducts technical review, and the Guardians, who hold emergency authority. $ZK is also the gas token for ZKsync Gateway, the layer that aggregates all ZKsync Network transactions before they settle on Ethereum L1.
When the former top regulator of the U.S. national banking system builds on a network, the question of whether institutional finance is moving onchain is already answered. The remaining question is which infrastructure carries it. @ZKsync is building that infrastructure. $ZK is its only native asset.
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