> For the complete documentation index, see [llms.txt](https://docs.emc.network/emc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emc.network/emc/zhong-wen/emc-network/he-xin-chan-pin/gong-lian/lian-qiao/lian-qiao-gong-zuo-ji-zhi.md).

# 链桥工作机制

目前的跨链交易投票执行的阈值为3，参与投票的Relayers数量为4。 

为了确保用户跨链资产的安全，各链的Erc20Handler合约分别设置了保险库地址，保险库地址为安全的第3方MPC多链资产管理钱包。 

跨链资产会实时通过Bridge、Erc20Handler转入保险库钱包地址，合约本身并不会长时间保留大量资产。

 用户从源链发起deposit交易后，链桥的Relayers对多链区块进行扫描并进行验证投票，当Relayers的投票数量达到阈值3/4后，向目标链合约进行对应代币的保险库资金申请，再经过保险库3/5自动化风控审批后完成资产在目标链的释放。

***

### Arbitrum One Erc20Handler 合约保险库地址

Vault Wallet Address: 0xd65951a9689193e7636549D49F911C70f1762842

<https://arbiscan.io/address/0xd65951a9689193e7636549D49F911C70f1762842>

### Edge Matrix Chain Erc20Handler 合约保险库地址

Vault Wallet Address: 0xd65951a9689193e7636549D49F911C70f1762842

<https://emcscan.com/address/0xd65951a9689193e7636549D49F911C70f1762842>

### Base Erc20Handler合约保险库地址

Vault Wallet Address: 0xd65951a9689193e7636549D49F911C70f1762842\
<https://basescan.org/address/0xd65951a9689193e7636549D49F911C70f1762842>