It would be scavenge and cobble together. If there was time to do any of this, you'd be trading a bit of your clan's goods for a disk with some rare library on it for calculating dates and times based on the planets and stars.
I think that scavenging old libraries and installers is going to become more of a thing as they disappear from the internet over time anyway.
1. rewrite history through the lens of a political point of view
2. conduct disinformation campaigns
3. create hoaxes for personal amusement
4. conduct marketing campaigns
5. clean up reputations
6. redefine words to justify past lying
I decided to keep the paper ones for the time being.
Anyone not white was considered fairly subhuman at the time, and I know that, but reading how casually that all is presented as fact in an encyclopedia is mildly disturbing.
And paper is distributed, hard to counterfeit and long-lasting in ways we haven't figured out how to replicate in electrons yet.
Also, establishing what a signature means often requires out-of-band information. I really like the concept of annotations for a signature that would communicate the signer's relationship to the work: http://www.loper-os.org/?p=1545