Nullark is a fixed-denomination ETH note system for MegaETH. A user deposits into NullarkPool, keeps private note material out of public channels, and later exits to a public recipient with a proof-checked withdrawal.
Nullark does not provide anonymous transfers. Deposits, withdrawals, recipients, fixed amounts, timing, commitments, nullifiers, encrypted-note events, and the submitter path can remain observable.

Start with boundaries

See the current public status, contract addresses, and non-approval boundaries.

Review the privacy model

Understand where direct on-chain linkage is reduced and which caveats still matter.

Verify artifacts

Check the pool, verifiers, public input order, trusted setup record, and prover artifact hashes.

Review relayer visibility

Understand relayer metadata, public exits, and request rejection boundaries.

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Nullark boundaries

Nullark uses fixed-denomination notes and proof-checked withdrawals on MegaETH. Plaintext note material is not posted as public chain data, and withdrawals prove authorization against accepted pool state before exiting to a public recipient. Nullark does not hide deposits, withdrawals, recipients, fixed amounts, timing, commitments, nullifiers, encrypted-note events, submitter paths, RPC metadata, frontend metadata, relayer metadata, or later wallet behavior.

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Current public source of truth

public-artifacts/current.json is the machine-readable runtime record. The human-readable pages repeat contract addresses for review, but the JSON artifact remains the canonical value source.