Generally, using cryptography or associated cryptographic functions is the way to go when trying to make robust systems. Joe Armstrong has a great talk where he outlines how to create a content addressable store for storing and working with knowledge/data. He suggests using SHA256 content hashing because giving items of data unique names is a hard problem so we might as well name pieces of data by their content hashes and then have a human readable pointer.

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https://www.youtube.com/watch?v=lKXe3HUG2l4