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 L99, one of those codes.
Code name (*): L99 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Underbakke, TwinGen, LLR Number of primes: total 84 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess') Score for Primes (*): total 43.8928, on current list 38.2258 Entrance Rank (*): mean 11525.00 (minimum 11525, maximum 11525)
Below is additional information about this entry.
Display (text): Underbakke, TwinGen, LLR Display (short): Underbakke Database id: 901 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 0.041% of the (active) primes and 0.000% of the (active) score for this program. Entry last modified: 2020-06-05 16:50:15