{"id":"consistent-hashing-is-a-stateless-topology-abstraction","text":"The consistent hash ring is a pure topology abstraction with no data-plane state: node operations are idempotent (add/remove on existing/missing nodes are no-ops), migration tracking is optional (callers pass keys in, the ring reports movements), and preference list construction automatically deduplicates physical nodes — making the ring a stateless function from key to node list that is safe to use concurrently and compose freely.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["ch-add-remove-idempotent","ch-migration-tracking-optional","ch-get-nodes-deduplicates-physical"],"outlist":[],"label":"Idempotent ops + optional key tracking + auto-dedup = pure stateless routing function"}],"dependents":["logical-physical-separation-spans-topology-storage-and-deletion"],"metadata":{"last_reviewed":"2026-06-05T18:21:49","review_result":"insufficient"},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"consistent-hashing-is-a-stateless-topology-abstraction","truth_value":"IN","reason":"SL justification valid","antecedents":["ch-add-remove-idempotent","ch-migration-tracking-optional","ch-get-nodes-deduplicates-physical"],"label":"Idempotent ops + optional key tracking + auto-dedup = pure stateless routing function"},{"node":"ch-add-remove-idempotent","truth_value":"IN","reason":"premise"},{"node":"ch-migration-tracking-optional","truth_value":"IN","reason":"premise"},{"node":"ch-get-nodes-deduplicates-physical","truth_value":"IN","reason":"premise"}]}}