A Practical Procedure for Identifying the Scheme Behind a Hash String (archived 2026-07-27)

When identifying the scheme behind a hash string left in logs or a DB, it helps to look at the prefix, separators, character set, and length, in that order. Storage formats with prefixes are fairly easy to pin down, while plain hex or Base64 only gets you as far as narrowing the candidates. Archived version of https://comcomponent.com/en/blog/2026/04/10/000-hash-format-identification/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-04-08.