Li Fan, Pei Cao and Jussara Almeida & Andrei Z. Broder - this new protocol, each proxy keeps a summary of the cache directory of each participating proxy, and checks these summaries for potential hits before sending any queries.
designed over a 20 year period by Carl Sassenrath, the system architect responsible for the world's first multitasking multimedia operating system, the Commodore Amiga OS.