This is legacy Sophon Chain testnet documentation. The production chain is being
wound down, and Sophon’s new applications are being built on Base.
Chain Contracts
| Name | Address | Comment |
|---|---|---|
| BridgeHub Proxy | L1: 0x35a54c8c757806eb6820629bc82d90e056394c92 (link) | Acts as a hub for bridges, so that they have a single point of communication with all ZK chain contracts (reference) |
| Create2 Factory | L1: 0xce0042b868300000d44a59004da54a005ffdcf9f (link) | CREATE2 factory contract for deterministic address deployment |
| Default Upgrade | L1: 0x27a7f18106281fe53d371958e8bc3f833694d24a (link) | Used to upgrade chain contracts. |
| Diamond Proxy | L1: 0xdd02368f378eed3779b358d2020a77e4d022236d (link) | The main contract uses EIP-2535 diamond proxy pattern (reference) |
| ERC20 Bridge | L1: 0x2ae09702f77a4940621572fbcdae2382d44a2cba (link)L2: 0xb10dd9f622ad0192cb007e12d5359081b90273bb (link) | Canonical bridge for ERC20 tokens (reference) |
| Governance | L1: 0x8550bc5b4a16f62a86f7bbd2d89412915c9587e6 (link) | Deployer and Admin multi-sig for ZK chains |
| Shared Bridge | L1: 0x3e8b2fe58675126ed30d0d12dea2a9bda72d18ae (link)L2: 0xb10dd9f622ad0192cb007e12d5359081b90273bb (link) | Bridges assets between L1 and hyperchains, supporting both ETH and ERC20 tokens (reference) |
| State Transition Proxy | L1: 0x4e39e90746a9ee410a8ce173c7b96d3afed444a5 (link) | Acts as a connector between Ethereum (L1) and ZK Chain (L2) (reference) |
| Transparent Proxy Admin | L1: 0x0358baca94dcd7931b7ba7aaf8a5ac6090e143a5 (link) | Admin Contract for the Transparent Proxy |
| Validator Timelock | L1: 0xd3876643180a79d0a56d0900c060528395f34453 (link) | An intermediate smart contract between the validator EOA account and the ZKsync smart contract (reference) |
| Verifier | L1: 0xac3a2dc46cea843f0a9d6554f8804aed18ff0795 (link) | ZK proof verifier contract |
Useful Contracts
| Name | Address | Comment |
|---|---|---|
| Sophon Global Paymaster | L2: 0x98546B226dbbA8230cf620635a1e4ab01F6A99B2 (link) | Sponsors all transactions |
| SOPH | 0x000000000000000000000000000000000000800A (link) | Native SOPH token |
| WSOPH | 0x9B7EA63EF5062661570afe548e3AD691D5652527 (link) | Wrapped SOPH |
| Bridged USDC | L2: 0x27553b610304b6AB77855a963f8208443D773E60 (link)L2 Custom Bridge: 0x72591d4135B712861d8d4513a2f6860Ac30A684D (link)L1: 0xbf4fdf7bf4014ea78c0a07259fbc4315cb10d94e (link) | Main USDC contract - Follows Circle standard |
| Multicall | 0x83c04d112adedA2C6D9037bb6ecb42E7f0b108Af (link) | Enables more efficient contract querying: https://github.com/mds1/multicall |
| Disperse | 0x7853Fa386191EF961e6448dEBE4C3E205F7A4215 (link) | Enables batch transfers for tokens and SOPH : https://github.com/sophon-org/disperse |
| Permit2 | 0x37CcE35d6A19C3948e9557308E705Ee64404B3D0 (link) | Makes token approvals easier and more secure: https://github.com/Uniswap/permit2 |
| TimestampAsserter | 0x3070e0Ff401098d250D78D4aeAF6fC85C6bD29ff (link) | Verifies if the current block timestamp falls within a specified range |
| LzOftHelper (retired) | 0x88172F3041Bd0787520dbc9Bd33D3d48e1fb46dc (link) | Legacy testnet contract; do not use it for new transfers. |
| Seaport 1.6 | 0x18f4D8BbEE9F8783E17B7f2F3Cc18c9Be346ba44 (link) | OpenSea’s marketplace protocol for safely and efficiently buying and selling NFTs |
| Conduit Controller | 0x0E5267441f3dC4BEC3bbC7f0e6588239c76C1B75 (link) | Protocol component for Seaport that manages token transfers |