### 已部署的主网合约
* [sbtc-token](https://explorer.hiro.so/txid/SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token?chain=mainnet)
* [sbtc-registry](https://explorer.hiro.so/txid/SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-registry?chain=mainnet)
* [sbtc-deposit](https://explorer.hiro.so/txid/SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-deposit?chain=mainnet)
* [sbtc-withdrawal](https://explorer.hiro.so/txid/SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-withdrawal?chain=mainnet)
* [sbtc-bootstrap-signers](https://explorer.hiro.so/txid/SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-bootstrap-signers?chain=mainnet)
### sBTC Clarity 合约
从高层来看，sBTC Clarity 合约负责以下事项：
#### sbtc-bootstrap 签名者
用于元签名者功能的核心合约，例如注册和轮换流程。
#### sbtc-deposit
由签名者调用的处理合约，用于记录已消费的比特币交易，并向载荷中包含的某个主体铸造一定数量的 sBTC。
#### sbtc-registry
用于在整个协议升级过程中维持可升级性的状态存储。
#### sbtc-withdrawal
供用户和签名者更新提款请求状态的交互点。
### 用户类型
除了合约本身之外，还有两种主要的用户类型会与这些合约交互。
#### 签名者
属于当前 sBTC 签名者集合的签名者。关于签名者及其在 sBTC 中角色的更多信息，请参见 [签名者流程详解](/learn/zh/sbtc/walkthroughs/signer-process-walkthrough.md).
#### 钱包
Stacks/比特币生态系统中的参与者，希望存入/提取/使用 sbtc。
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