{"id":"append-only-versioning-makes-restore-non-destructive","text":"Both S3 and Google Drive model version history as append-only lists where restoring an old version creates a new entry rather than rolling back, preserving full audit trails and making every restore operation non-destructive.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["s3-version-list-append-only","gdrive-restore-creates-new-version"],"outlist":[],"label":"Append-only version lists make restore a forward operation, not a rollback"}],"dependents":["append-only-semantics-span-storage-and-streaming","deletion-is-metadata-in-replicated-systems"],"metadata":{"last_reviewed":"2026-06-06T06:26:57","review_result":"pass"},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"append-only-versioning-makes-restore-non-destructive","truth_value":"IN","reason":"SL justification valid","antecedents":["s3-version-list-append-only","gdrive-restore-creates-new-version"],"label":"Append-only version lists make restore a forward operation, not a rollback"},{"node":"s3-version-list-append-only","truth_value":"IN","reason":"premise"},{"node":"gdrive-restore-creates-new-version","truth_value":"IN","reason":"premise"}]}}