Contracts reference¶
What each deployed contract does, and which withdrawal verifier the on-chain proof binds against. For the canonical addresses on each network, see Contract addresses.
zBase is live on Base mainnet. The addresses below are the Base Sepolia testnet stack (
eip155:84532), kept here for development reference; the mainnet addresses live on the Contract addresses page.
Current — privacy pool (live)¶
The live pool is a plain 0xbow Privacy Pool: deposits sit idle.
| Contract | Address | Purpose |
|---|---|---|
| Entrypoint (proxy) | 0x598ffaac79ae29b1aae571fd91899d4492183688 |
Public deposit + withdraw entry |
| USDC Pool | 0x4ebcfeaf661a25f103b3d1f16be5a7668ab0935a |
Privacy pool; deposits held idle |
| Withdrawal Verifier | 0x5f5505242730dfc8a2c2637eb5258dc2c6622641 |
Solidity Groth16 verifier — withdrawal circuit |
| Commitment Verifier | 0x293400accdeb0c1c2d419868303a8e96c09900ab |
Solidity Groth16 verifier — commitment circuit |
| USDC token | 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
External — Base Sepolia USDC |
| Admin / Owner / Postman | 0xcDB447c3a352AD8ADF3D8d97Da9a3CF91880b843 |
Single-key today; replaced by ThresholdEntrypoint in a future release |
| Deploy block | 40668000 |
Start of relevant LeafInserted history |
Single-key postman until the threshold deploys. Three-of-five
ThresholdEntrypointis scaffolded and tested but not yet deployed — it's a roadmap item, not live. See the Roadmap anddocs/governance/for the signer-recruitment plan.
On-chain settings¶
| Setting | Value | Notes |
|---|---|---|
SCOPE |
per-pool constant | Used in label = keccak256(SCOPE, nonce) |
| Deposit vetting fee | 1% |
Deducted at deposit; the commitment carries value - fee |
A 1 USDC deposit becomes
990000raw units inside the commitment. The facilitator handles this automatically; integrators using/api/withdrawdirectly should be aware.
Explorer¶
All addresses above can be inspected on Base Sepolia BaseScan.
Next → Circuits reference