[MrThoughtful]

So when you bookmark the Hacker News frontpage, that would be a hash of its current content and then you will visit that stale stale version forever and never see any new stories?

[pyinstallwoes]

a version of it lives forever. You can associate siblings/changesets based on hash linking.

https://sentido-labs.com/en/library/201904240732/Xanadu%20Hy...

Something like Xanadu tumblers.