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 gb1, one of those codes.
Code name (*): gb1 Persons (*): 2 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Buechel, Keller, PRP, Proth.exe Number of primes: total 23 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess') Score for Primes (*): total 42.0544
Below is additional information about this entry.
Display (text): Buechel, Keller, PRP, Proth.exe Display (short): Buechel & Keller Database id: 535 (do not use this database id, it is subject to change) Proof program: Proth.exe Entry last modified: 2020-08-15 00:50:15