The only "PN" on the cell is the QR code near the negative terminal. There is nothing else anywhere on the cells.
These cells put out 250 amps per cell in the cars they came out of. I have this car with 100K miles on it, and it still puts out full rated range. The car only runs the cells from 4.1 to 3.4V so I don't get 25 ah out of the cells, but I get a metric crap ton of cycles
These cells can put out 500 amps for 10 sec if you allow for a 1V drop in voltage (just like tesla does on its cells at 20 amps). I used the DCIR I got a few days ago to calculate that amp rating.