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BASE PRIVACY

Institutional Privacy for the Coinbase Ecosystem.

Related · tier-1 reading. For the privacy story end-to-end — FHE + STARK proof + portable artifact, see Privacy Layer.

Base is the institutional on-ramp to DeFi. But every transaction is public. Every token balance, DeFi position, and Coinbase ecosystem interaction is visible to anyone. H33 adds post-quantum privacy to the most regulated L2 in crypto.

Schedule Demo Privacy Layer Hub
NO PLAINTEXT BALANCE EXPOSURE DETECTEDVerified: --
LIVE ATTESTATION
Base Mainnet -- current anchor status
Connecting to Base...
EXPOSURE COMPARISON
What changes when H33 is in the path

Native Base

  • × Visible token balances
  • × Visible DeFi positions
  • × Visible swap history
  • × Visible lending positions
  • × Visible NFT ownership
  • × Visible Coinbase ecosystem visibility
  • × Visible gas usage patterns
  • × Visible bridge transactions

H33 Protected

  • ✓ Encrypted transaction workflow
  • ✓ Attested execution proof
  • ✓ Hidden position metadata
  • ✓ Proof-only compliance verification
  • ✓ 32-byte calldata commitment
  • ✓ Independent verification
  • ✓ Post-quantum attestation
  • ✓ Replay-grade evidence
ATTESTATION RECEIPT
What a verified attestation looks like
h33-74 attestation receipt
H33-74 ATTESTATION RECEIPT Receipt ID: h74_attest_... DAG Root: 0x... (depth: 4, nodes: 12) Proof Hash: 0x... (STARK, 128-bit PQ security) Replay Ref: replay://h33.ai/r/... Chain Anchor: Base L2 -- block ... Commitment: 0x... (32 bytes in calldata) SIGNATURES: ML-DSA-65: VALID (3,309 bytes -- MLWE lattice) FALCON-512: VALID (666 bytes -- NTRU lattice) SLH-DSA-128f: VALID (17,088 bytes -- hash-based) VERIFICATION: ALL CHECKS PASSED (20/20) HATS LEVEL: Level 1 Conformance CACHEE KEY: cachee://h33.ai/c/... Replay This Attestation --> Verify Independently -->
ATTESTATION PIPELINE
Five stages. 32 bytes on-chain.
01
Transaction
Encrypted inputs from protocol
-->
02
STARK Proof
Constraint satisfaction without reveal
-->
03
PQ Signatures
ML-DSA + FALCON + SLH-DSA triple sign
-->
04
Cachee Store
Full proof bundle persisted off-chain
-->
05
EVM Calldata
32-byte commitment on Base L2
32 bytes on-chain. Full proof off-chain. Three PQ families. Zero data revealed.
DISCLOSURE BOUNDARY
What crosses the attestation boundary

NOT REVEALED

  • × Token balances
  • × DeFi positions
  • × Swap history
  • × Lending positions
  • × NFT ownership
  • × Coinbase account link
  • × Gas patterns
  • × Bridge activity

ONLY REVEALED

  • ✓ Cryptographic validity
  • ✓ Compliance proof
  • ✓ Solvency attestation
  • ✓ Attestation commitment
  • ✓ Verification status
  • ✓ Replay availability
  • ✓ PQ signature bundle
  • ✓ Chain anchor hash
MULTI-CHAIN WITNESSING
Anchored across:
Base
|
Ethereum
|
Bitcoin
|
Solana
Every attestation is witnessed across multiple chains. Cross-chain continuity.

Replay This Attestation

Inspect lineage. Inspect proof. Inspect DAG. Verify signatures.

Replay ProofView DAGVerify SignaturesHATS Verifier
Built For
Institutions building on Base at scale.
Coinbase Ecosystem Partners
DeFi Protocols
Stablecoin Issuers
RWA Tokenization
Institutional Vaults
Compliance Teams
EXPLORE
50 Live Systems 44 ZK Use Cases

The Coinbase ecosystem needs compliant privacy.

32 bytes on-chain. Post-quantum attestation. Privacy for the most regulated L2 in crypto.

Schedule Demo

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