Atomic resources the Notebook assembles into entries. Each fact is text plus freeform key:value tags — e.g. case:inn_fire, src:innkeeper, needs:knows_goods_in_cellar. Contradictions / Active Case / Correlation are queries over these tags, not stored here.

Cross-source links between two facts from independent streams — the in-game [LINK EVIDENCE] action. Pick two facts; the link references them by id (no text is copied). The first link the player makes unlocks Arc 2.

Translation notes — cultural nuance the Notebook's translation layer loses.

Read-only projections of the fact pool — what the game derives at runtime. Simulate MC's state to see what surfaces. Save first; views read the saved notebook.json.