Two UUIDs that look similarly formatted, the same dashes in the same places, can still be fundamentally different kinds of identifier underneath, one version encoding a timestamp and a node identifier, another generated from pure randomness with no structure to decode at all, a distinction that matters when debugging why two IDs that should sort predictably against each other don't, or why a system expected one version and received another. This tool compares two UUIDs directly, checking their version, variant, any embedded timestamp, and their lexicographic order relative to each other, rather than treating every UUID as interchangeable just because the format looks the same. Useful for confirming two identifiers are actually the same UUID version before assuming they behave the same way, checking whether one UUID genuinely sorts before another as expected, or debugging a system that's receiving an unexpected UUID version from somewhere in a pipeline.