Samuel Yates began, and this site continues, a database of the largest known primes. Primes in that database are assigned a proof-code to show who should be credited with the discovery as well as what programs and projects they used. (Discoverers have one prover-entry, but may have many proof-codes because they use a variety of programs...)
This page provides data on c84, one of those codes.
Code name (*): c84 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Underwood, Primo Number of primes: total 8 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 37.5884, on current list 37.4996 Entrance Rank (*): mean 62244.00 (minimum 55240, maximum 67162)
Below is additional information about this entry.
Display (text): Underwood, Primo Display (short): Underwood Database id: 8341 (do not use this database id, it is subject to change) Proof program: Primo The primes from this code accounts for 1.479% of the (active) primes and 0.011% of the (active) score for this program. Entry last modified: 2022-11-26 21:50:12