i couldn't get thru the wall of boring PDF text, but is this a scheme to checksum an url, then send the code with the request, so the webserver can 404 if the user altered the url?

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absurdistan a day ago | parent | next [-]

Yes, along with incorporating into the checksum any other session data the server desires. Basically, DRM for links.

	▲	mring33621 6 hours ago \| parent [-]
		g r e a t 1) prob not original 2) stupid idea

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12_throw_away a day ago | parent | prev [-]

so ... a bearer token for a specific URL