You need a centralized, cohesive entity with a distributed storage footprint for the time spans you’re interested in (100+ years) imho. The distributed nature creates geographic resiliency while the cohesion provides motivation for durability. “How do you get people to care and keep caring.” Bit of a cybernetics governance problem, as it relates to institutions that are public goods. You need both the infrastructure the archive sits on, and the people who care to curate and custodian the archive, and those people will change over lifetimes like the Ship of Theseus. Do they have the tools they need? Do you have the right people for the job? How will you find new people over time interested in continuing to solve this problem?

Think in systems.

https://longnow.org/talks/02011-kahle/

https://medium.com/the-long-now-foundation/the-permanent-leg...

> “The goal is for the endowment to provide, at the very minimum, permanent storage of users’ materials and the capability to download these materials at any time,” Friedman says. “But it’s not just the cost of storage — these fees also support an organization committed to protecting, migrating, and maintaining access to user content for all time.”