There were some cases where pin was either stored encrypted on magstrip or was generated from information on magstrip, but I think these very few cases and I do

There were some cases where pin was either stored encrypted on magstrip or was generated from information on magstrip, but I think these very few cases and I don't think any bank does it anymore. Most cards I dealt with had option to change PIN either online or via call to bank support. So it can not be stored on card for offline verification.