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 c55, one of those codes.
Code name (*): c55 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Gramolin, Primo Number of primes: total 2 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 32.0271, on current list 30.5348 Entrance Rank (*): mean 58539.00 (minimum 58539, maximum 58539)
Below is additional information about this entry.
Display (text): Gramolin, Primo Display (short): Gramolin Database id: 5730 (do not use this database id, it is subject to change) Proof program: Primo The primes from this code accounts for 0.296% of the (active) primes and 0.000% of the (active) score for this program. Entry last modified: 2022-12-09 02:50:12