It's a process and culture thing: maintain descriptive context and history about all changes, and ensure that references and hyperlinks within those are temporally stable (that is, they'll still refer to the same content when they're examined by a future observer).

"Chesterton's Permalinked Fence" is generally straightforward to reason about.

Good thought. Maybe people should learn to put some signage on the damn thing.

“Beware of the bull”