Archived App
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
通过融合区块链和信息安全技术，可支持文字、图片、视频等多种格式的电子文件进行密码学摘要上链，实现电子文件的安全、可信、可控共享。
What's New in 电子证书
1.6.8
November 2, 2022
1. 增加免密支付 2. 修复已知bug 3. 提高用户体验
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