PDF 文件身份戳记
1 分•作者: roogey•24 天前
我创建 Ordius 是为了解决一个我找不到完美解决方案的问题：为 PDF 文档建立一个确定性的身份戳，同时保留文档本身。
Ordius 为 PDF 创建一个 ID，并将该身份嵌入文档中，以便日后进行验证。对我来说，重要的限制是 Ordius 不应该对文档进行规范化或重构，不修改其原始载荷字节，不剥离元数据或维护元数据排除逻辑，不需要独立的身份文件，不依赖 PKI，并且保留提交的文档。
我认为通过这次构建，字节依赖悖论已经得到解决，最终是一个包含生成和验证操作的小型 API。它已在此上线：https://ordius.net/home/
我仍在尝试回答一些问题：当文档上传和下载时，云存储应用程序是否会保留 Ordius Block？当带有身份戳的 PDF 作为电子邮件附件发送时，Ordius Block 是否会被保留？我已测试过：将带有 Ordius 身份戳的文档作为附件发送到 Gmail，一切正常。
我希望听到那些从事文档、PDF、签名、档案或文档完整性工作的人的反馈。我特别想了解这种方法中不必要的摩擦以及它不适用的情况。
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I built Ordius to solve a problem I couldn't find a clean solution for: establishing a deterministic identity stamp for a PDF document while preserving the document itself.<p>Ordius creates an ID for a PDF and embeds that identity within the document so it can be verified later.
The important constraints for me were that Ordius should not normalize or reconstruct the document, modify its original payload bytes, strip metadata or maintain metadata exclusion logic, require a detached identity file, depend on PKI, and retain the submitted document.<p>I like to think the byte dependency paradox has been resolved by this build, and the result is a small API with Generate and Verify operations.
It's live here: https://ordius.net/home/<p>There are still some questions I am trying to answer: Do cloud storage applications preserve the Ordius Block when a document is uploaded and downloaded? Is the Ordius Block preserved when a stamped PDF is sent as an email attachment? What I have tested: sending an Ordius stamped document as an attachment in Gmail passes with no problems.<p>I'd like to hear from people who work with documents, PDFs, signing, archives, or document integrity. I'm particularly interested to hear about unnecessary friction in the approach and situations where it doesn't make sense.