How do Golomb Coded Sets work?

How do Golomb Coded Sets work?

From my understanding golomb coded sets are a probabilistic data structure that encodes the deltas of a order set of elements.

With things like txids, which are are evenly distributed, golomb coded sets are an efficient way to encode things inside of a block.

What is the ordering used to determine how txids are encoded in the set? It seems we need a base txid, and then compute deltas from that original txid? Is it just as simple as the lowest big endian numeric interpration of a txid in a block?

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