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 p255, one of those codes.
Code name (*): p255 Persons (*): 1 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Siemelink, Srsieve, CRUS, OpenPFGW Number of primes: total 10 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 46.8232, on current list 46.6798 (normalized score 9) Entrance Rank (*): mean 412.00 (minimum 280, maximum 537)
Below is additional information about this entry.
Display (text): Siemelink, Srsieve, CRUS, OpenPFGW Display (short): Siemelink Database id: 4240 (do not use this database id, it is subject to change) Proof program: PrimeForm The primes from this code accounts for 0.860% of the (active) primes and 0.927% of the (active) score for this program. Entry last modified: 2021-10-26 07:37:22