This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
HackerNoon
hackernoon.com
did:plc:kbzotn4ippvrqllcitxglgm2
There's a problem that
s been bugging me for a while. How do you prove a document existed at a specific point in time—without handing it over to someone #softwareengineering
https://hackernoon.com/docproof-lets-you-prove-a-file-existedwithout-uploading-the-file
2026-02-11T05:06:11.653Z