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 x46, one of those codes.
Code name (*): x46 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Otremba, Fpsieve, OpenPFGW, Unknown Number of primes: total 5 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 46.1750, on current list 45.8822 (normalized score 4) Entrance Rank (*): mean 2858.00 (minimum 1997, maximum 3315)
Below is additional information about this entry.
Display (text): Otremba, Fpsieve, OpenPFGW, Unknown Display (short): Otremba Database id: 8780 (do not use this database id, it is subject to change) Proof program: Unknown Entry last modified: 2022-08-16 18:50:12