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Temporal Knowledge Graph Memory(TKG)
An agent memory substrate that stores facts as edges in a knowledge graph, each edge carrying explicit bi-temporal validity: valid time (when the fact was true in the world) and transaction time (when it was ingested). When new information contradicts an existing fact, the edge is invalidated by writing a t_invalid timestamp rather than deleted, so the graph can answer what was believed and when, and never serves a stale fact as current. This is the Zep and Graphiti design. Distinct from `semantic-memory-networks` and the static `knowledge-graph-construction` pattern in knowledge-representation, which model a graph with no time dimension or fact-supersession.
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Temporal Knowledge Graph Memory(TKG)
An agent memory substrate that stores facts as edges in a knowledge graph, each edge carrying explicit bi-temporal validity: valid time (when the fact was true in the world) and transaction time (when it was ingested). When new information contradicts an existing fact, the edge is invalidated by writing a t_invalid timestamp rather than deleted, so the graph can answer what was believed and when, and never serves a stale fact as current. This is the Zep and Graphiti design. Distinct from `semantic-memory-networks` and the static `knowledge-graph-construction` pattern in knowledge-representation, which model a graph with no time dimension or fact-supersession.
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