> ## Documentation Index
> Fetch the complete documentation index at: https://docs.alforse.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 证据链

> 把合同原件、发票、收款凭证和操作日志绑定到合同、付款和管理动作上。

## 概览

把合同原件、发票、收款凭证和操作日志绑定到合同、付款和管理动作上。

## 步骤

* 适用场景 the evidence gallery for invoice and receipt proof.
* 适用场景 the operations log for administrative and sensitive actions.
* Files remain subject to scan policy before download.
* Audit data is read-only from public APIs.

## 下一步

* [Audit API](/zh-Hans/api-reference/audit)
* [Files](/zh-Hans/api-reference/files)