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 p343, one of those codes.
Code name (*): p343 Persons (*): 1 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Brown1, GeneFer, AthGFNSieve, PrimeGrid, OpenPFGW Number of primes: total 15 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 46.2833
Below is additional information about this entry.
Display (text): Brown1, GeneFer, AthGFNSieve, PrimeGrid, OpenPFGW Display (short): Brown1 Database id: 6570 (do not use this database id, it is subject to change) Proof program: PrimeForm Entry last modified: 2021-06-24 03:37:18