Base Privacy by H33

Institutional Privacy for Base.

Name: Base Privacy by H33
Brand: H33

Regulated institutions need Base. Base needs compliant privacy. H33 provides it.

Base attracts institutions because of Coinbase. Coinbase is the most regulated exchange in the United States. Institutions deploying on Base expect compliance infrastructure that matches Coinbase's own standards. Privacy without compliance liability is what H33 delivers.

Schedule Demo Privacy Layer Hub

The Coinbase Advantage

Coinbase built the most regulated on-ramp. Base needs the most regulated privacy.

Institutions choose Base because Coinbase provides regulatory confidence. But once on Base, those same institutions face the same privacy gap as every other EVM chain: every transaction, every balance, every counterparty interaction is publicly visible. An institutional fund deploying $100M on Base cannot have its positions visible to competitors. A regulated exchange building on Base cannot expose its order flow. A Coinbase Ventures portfolio company cannot have its treasury visible on-chain.

Without Privacy

Institutional positions are public

Every DeFi interaction, every yield farming position, every rebalance is visible to competitors, front-runners, and market makers. Institutional capital cannot deploy at scale without privacy infrastructure.

With H33

Compliance without custody

Prove KYC, prove accreditation, prove sanctions compliance -- all cryptographically. The protocol receives a 32-byte attestation. The institution's positions, identities, and counterparties remain private. Regulators verify independently via the public HATS verifier.

Integration

Same EVM integration as Ethereum.

Base is an OP Stack L2. The integration is identical to Ethereum mainnet: a Solidity verifier contract, a 32-byte commitment stored in calldata or contract storage, and the full proof retrievable from Cachee. If your protocol runs on Base, adding H33 privacy attestations requires one contract call.

32 bytes

On-Chain

The commitment stored on Base. Cheapest possible L2 footprint. One bytes32 in contract storage or calldata.

42 bytes

Cachee

The H33-74 attestation bundle. Three PQ signatures distilled. Retrievable by anyone with the commitment.

<100ms

Full Verify

Complete STARK proof verification. Run the public HATS verifier. Trust only mathematics.

Why Base

The compliance-first L2 needs compliance-first privacy.

Coinbase Ventures Portfolio

Companies in the Coinbase Ventures portfolio deploying on Base need privacy infrastructure that meets Coinbase-level regulatory standards. H33 provides independently verifiable compliance attestations that regulators trust.

Regulated Funds

Hedge funds, family offices, and institutional allocators deploying on Base require privacy for their positions. H33 proves compliance without revealing portfolio composition or counterparty relationships.

Institutional DeFi

Base is becoming the institutional DeFi chain. Institutional DeFi requires that every participant can prove compliance without the protocol becoming a data custodian. This is exactly what H33 was built for.

Post-Quantum Ready

Base inherits Ethereum's security assumptions. H33 adds post-quantum attestations on top -- three independent hardness assumptions via H33-74. The privacy layer survives the quantum transition even if the base layer must migrate.

What Never Leaves The Institution

Never transmitted. Never stored. Never logged.

× DeFi positions

× Wallet balance

× Identity documents

× Counterparty data

× Trading strategies

× Portfolio allocation

× Net worth

× Rebalance timing

Only cryptographic attestations reach the chain.

Why Now

Base is becoming the institutional DeFi chain. Privacy must arrive with the institutions.

Base's transaction volume and TVL growth are driven by institutional deployment. But institutional capital at scale requires privacy infrastructure that does not exist on Base today. The first compliant privacy layer on Base captures the institutional migration. The window is open now.

Regulatory Alignment

Coinbase has invested heavily in regulatory compliance. Institutions deploying on Base expect matching infrastructure. H33 attestations provide the compliance evidence regulators require -- without the liability of PII custody.

RWA Tokenization

Real-world asset tokenization on Base requires verified holder registries, accredited investor attestation, and jurisdictional compliance. H33 provides all three cryptographically, without the issuer touching a single identity document.

Coinbase-grade compliance. Zero PII custody.

32 bytes on-chain. Full proof off-chain via Cachee. The institutional privacy layer for Base.

Schedule Demo

H33.ai, Inc. · Patents Pending · HATS Standard · Privacy Layer · H33-74