REL · 0.1.0
PLONK · BN254
STATUS
PRE-TESTNET
Cross-chain privacy bridge (pre-testnet)

NULLIFY

Nullify the trace.

Deposit on one chain. Withdraw on another. Leave nothing connecting the two. Zero-knowledge proofs sever the link between source and destination — designed for Base, Ethereum, Arbitrum, Solana and beyond.

The mechanism

Three steps. No trail.

Funds enter a shielded pool as a cryptographic commitment. A proof lets you exit anywhere — without revealing which deposit was yours.

01 / DEPOSIT

Commit

Your wallet generates a secret note locally and submits only its hash. The amount enters the pool; the secret never leaves your device.

02 / PROVE

Prove

A PLONK proof attests that you own some note in the anonymity set — never which one. A one-time nullifier blocks any double-spend.

03 / WITHDRAW

Vanish

A relayer submits the proof on the destination chain. Funds land at a fresh address with no gas, no balance, and no link back.

Privacy by design

What the chain sees.
And what it can't.

// ledger view — tap to declassify deposit_from: 0x91c4···deAf
amount: 0.50 ETH
commitment: 0x7b…e2
───────────────
withdraw_to: 0x33a0···91Bc
on_chain: arbitrum
linked_deposit: UNKNOWABLE
depositor↔recipient: SEVERED
  • Cross-chain anonymity setDeposits from every chain pool together, so a withdrawal could have come from any of them.
  • Nullifier double-spend guardSpending publishes a hash of a secret — proving "spent" without revealing which note.
  • Relayer can't redirectRecipient, relayer and fee are bound inside the proof. Tamper, and it fails to verify.
  • Optional viewing keysDisclose your own history to whom you choose. Opt-in, user-held, never a backdoor.
Coverage

One pool. Many chains.

Per-chain shielded pools share a single committed root through cross-chain attestation — so the set keeps growing as Nullify deploys.

Base
EVM L2 · PLONK verifier

● TESTNET SOON
Ethereum
EVM L1 · PLONK verifier

● TESTNET SOON
Arbitrum
EVM L2 · PLONK verifier

● TESTNET SOON
Optimism
EVM L2 · PLONK verifier

◐ TESTNET
Solana
SVM · Groth16 wrap

◐ TESTNET
Polygon
EVM L2 · PLONK verifier

○ PLANNED
PLONK
PROOF SYSTEM
BN254
CURVE
2³²
TREE LEAVES
~0.5%
RELAYER FEE

Ready to disappear?

Clone the repo, build the circuits, spin up a relayer. The whole protocol is open source.