{"id":"chat-dual-ordering-sequence-and-lamport","text":"Chat system uses per-conversation monotonic sequence numbers for total order within a conversation and Lamport timestamps for cross-conversation causal ordering.","truth_value":"IN","source":"entries/2026/06/05/topic-consistency-models.md","source_url":"","source_hash":"","justifications":[],"dependents":["chat-monotonic-read-progress"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"chat-dual-ordering-sequence-and-lamport","truth_value":"IN","reason":"premise"}]}}