{"id":"log-structured-sentinel-is-in-band","text":"`log-structured-hash-table/bitcask.py` uses `TOMBSTONE = b\"__BITCASK_TOMBSTONE__\"` as an in-band sentinel in the value space; storing those exact bytes as a value causes silent data loss on recovery when the record is misinterpreted as a deletion","truth_value":"IN","source":"entries/2026/05/29/topic-tombstone-semantics.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"log-structured-sentinel-is-in-band","truth_value":"IN","reason":"premise"}]}}