# 合约

USDCx 智能合约部署在 Stacks 上。它的角色与原生 USDC 的行为相同，并验证 Circle 的存款证明以进行铸造，同时发出销毁事件以便赎回。

下面是构成 USDCx 架构的核心合约。

### Stacks

<table><thead><tr><th width="125.3046875">网络</th><th>USDCx 代币合约</th><th>USDC xReserve 协议（入口点）</th></tr></thead><tbody><tr><td>主网</td><td><a href="https://explorer.hiro.so/txid/0x07ea0a8d7262acd0cb094006969527351883281e08ebb6535843c5dbbde31ce9?chain=mainnet">SP120SBRBQJ00MCWS7TM5R8WJNTTKD5K0HFRC2CNE.usdcx</a></td><td><a href="https://explorer.hiro.so/txid/0xb5f29114ecdbaf199887433cdd4ca46d177d60875141e1dfb67304b53bf2df11?chain=mainnet">SP120SBRBQJ00MCWS7TM5R8WJNTTKD5K0HFRC2CNE.usdcx-v1</a></td></tr><tr><td>测试网</td><td><a href="https://explorer.hiro.so/txid/ST1PQHQKV0RJXZFY1DGX8MNSNYVE3VGZJSRTPGZGM.usdcx?chain=testnet">ST1PQHQKV0RJXZFY1DGX8MNSNYVE3VGZJSRTPGZGM.usdcx</a></td><td><a href="https://explorer.hiro.so/txid/ST1PQHQKV0RJXZFY1DGX8MNSNYVE3VGZJSRTPGZGM.usdcx-v1?chain=testnet">ST1PQHQKV0RJXZFY1DGX8MNSNYVE3VGZJSRTPGZGM.usdcx-v1</a></td></tr></tbody></table>

### 以太坊

<table><thead><tr><th width="103.1875">网络</th><th>USDC 代币合约</th><th>xReserve 合约</th></tr></thead><tbody><tr><td>主网</td><td><a href="https://etherscan.io/token/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48">0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48</a></td><td><a href="https://etherscan.io/address/0x8888888199b2Df864bf678259607d6D5EBb4e3Ce">0x8888888199b2Df864bf678259607d6D5EBb4e3Ce</a></td></tr><tr><td>测试网</td><td><a href="https://sepolia.etherscan.io/token/0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238">0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238</a></td><td><a href="https://sepolia.etherscan.io/address/0x008888878f94C0d87defdf0B07f46B93C1934442">0x008888878f94C0d87defdf0B07f46B93C1934442</a></td></tr></tbody></table>


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