Smart Contracts

Note: These are testnet deployments for development and testing. Mainnet deployment information will be updated when available.

Network Configuration

NEUS operates on a hub-and-spoke architecture with verification processing centralized on Base Sepolia and optional cross-chain proof storage on multiple testnet networks.

Hub Chain - Base Sepolia (Chain ID: 84532)

All verification processing occurs on the hub chain:

Contract	Address	Explorer
NEUSVerifierRegistry	0x728Ba14b52d4811e2eDcE37c7e419AB47B0A17Df	BaseScan
NEUSVoucherHub	0xD524bd93e51b29C63b921994BF2BA61f8f49FB6C	BaseScan
NEUSToken	0xBe5F4fe3ba4C28DBfB5d9518b6F68F68844e3854	BaseScan

Cross-Chain Storage Spokes

Optional proof storage contracts on testnet networks:

Network	Chain ID	Contract Address	Explorer
Ethereum Sepolia	11155111	0x4eE5346a253bA26508FC99FAa49932561205359C	Etherscan
Polygon Amoy	80002	0x5746f86E6BC6AcCF34286Bc8E8803CcAc4a0306d	OKLink
Arbitrum Sepolia	421614	0x0095E6e6A1CA0E05e56920aeaDc0c8bDDEADcdC1	Arbiscan
Optimism Sepolia	11155420	0x24f9Af19693D163576ac49DF3b7a75934bB3B1b4	Etherscan

Contract ABIs

Complete contract ABIs are available in the open-source repository:

• NEUSVerifierRegistry.json

• NEUSVoucherHub.json

• NEUSVoucherSpoke.json

• NEUSToken.json

Source Code

All smart contract source code is available under Business Source License 1.1:

• Smart Contracts Repository

• License Terms

Verification Status

All deployed contracts have been verified on their respective blockchain explorers. Source code matches the deployed bytecode and can be independently verified.

Network Status

Current deployment status: Hybrid Mainnet/Testnet

• Asset verification: Uses mainnet data for verifier logic

• Hub processing: Fully operational testnet

• Cross-chain propagation: Operational across all spoke chains in testnet

• Proof storage: Testnet contracts for development and testing

Contact

For technical questions about deployments:

• Technical Support: [email protected]

• General Inquiries: [email protected]