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If you mean hashing the whole blob of data, one issue could be that if they ever wanted to add a new tracking data point, they would lose backward compatibility
by kyle-rb 8y ago
If you mean hashing the whole blob of data, one issue could be that if they ever wanted to add a new tracking data point, they would lose backward compatibility with their previously collected values. I guess they could fix that by making the hash of the added stuff separate, but that would be pretty weak when there isn't a ton of possibilities for the new data points.