research: Investigate "commitment-based" extractors

[devloper]

Today the extractor circuit does all parsing and extraction in a single circuit client side. This offers selective disclosure of bytes of data by parsing the JSON object and only extracting the required keys.

One possible path to improved optimization is to split the problem into two problems one client side and one server side. Instead of parsing on the client, can we commit the data into a structure in which the user can identify the fields they want to reveal without fully parsing the object?

It's possible that these two problems are synonymous and there is not optimization to be gained.

[Autoparallel]

@devloper thoughts on this at this point? Tempted to close.