A Bloom Filter[1] could be used as a lighter alternative. You probably have at least one of those in your disk now. [1]: https://en.wikipedia.org/wiki/Bloom_fi

A Bloom Filter[1] could be used as a lighter alternative. You probably have at least one of those in your disk now. [1]: https://en.wikipedia.org/wiki/Bloom_filter https://en.wikipedia.org/wiki/Bloom_filter