The riverbed

Your stones. Not the ones that exist, the ones you looked at. It does not move. Everything else in every world he visits does.

A stone enters the water when something happens that the Book of Everything recorded differently, or did not record at all. He does not collect souvenirs. He collects disputes.

This record lives in this browser and nowhere else. There is no account, no server and nothing to sync. You can destroy it in one click, because a record you cannot destroy is not yours either.