מקור לידע: גרפים של LLM

תקציר מקורי באנגליתAn agent hands a doctor a clean, confident fact: the patient has a penicillin allergy. But that fact was synthesized from three sources, an EHR record, a lab report, and something the patient typed into an intake chatbot, and by the time it reaches the doctor, which one it came from is gone. You cannot just stamp a source ID on it, because the LLM merged entities and later data invalidated earlier facts, so the store keeps shifting under your pointer. Daniel Chalef's argument is that provenance for a knowledge graph an LLM builds has to be a graph itself. In Graphiti, the open source framework behind Zep, sources become episodes and every derived fact links back to them, so tracing a fact to its origin is just a graph walk. Tag a source once and the tag follows every node and edge derived