alt Hacker NewsA dataset can persist across multiple file systems. A UUID is a way to know that one dataset is equivalent (identical) to another. Now you can cache, store-and-forward, archive and retrieve and know what you have.
A dataset can persist across multiple file systems. A UUID is a way to know that one dataset is equivalent (identical) to another. Now you can cache, store-and-forward, archive and retrieve and know what you have.
UUIDs aren't very good for this use case, a sufficiently large CRC or cryptographic hash is better because it's intrinsically tied to the data's value while UUIDs are not