{"id":"s3-etag-verified-on-read","text":"get_object re-computes the MD5 ETag from stored data and compares against the stored ETag before returning, raising ValueError on mismatch — detecting data corruption at read time rather than silently serving corrupted data.","truth_value":"IN","source":"entries/2026/06/05/s3-object-storage-s3_object_storage.md","source_url":"","source_hash":"","justifications":[],"dependents":["read-path-verification-is-improving"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"s3-etag-verified-on-read","truth_value":"IN","reason":"premise"}]}}