The fundamental design of Bolt is the same as LMDB though. The premise behind why LMDB is &quot;uncorruptable&quot; is that all the dirty data pages for a transaction are written out first followed by a write to a double-buffered meta page that points to the new root of the B+tree.<p>If any data page is partially written then it doesn&#x27;t matter because the new meta page hasn&#x27;t been written to point to it. If the new meta page is partially written then it is detected through a checksum and the previous meta page is used (thereby rolling back the transaction). That&#x27;s how Bolt works as well.<p>That being said, all code has bugs (yes, even LMDB). Bolt has a large amount of test coverage as well as randomized black box testing that it uses to help minimize those bugs.