Piff Perkins
Veteran
Dahi co-producing on the Khalil track suggests it's either a newer track (2013-2016 era perhaps) or something from the 2008 sessions that was later reworked.
As a reminder, Dahi is one of Kendrick's best producers (Money Trees, Loyalty, Lust, XXX) and did Worst Behavior for Drake. He also worked on Dre's Compton album and did one of the better tracks on there (Deep Water). This Nas track could come from those Compton sessions, given that Dahi and Khalil worked together at the time.
As a reminder, Dahi is one of Kendrick's best producers (Money Trees, Loyalty, Lust, XXX) and did Worst Behavior for Drake. He also worked on Dre's Compton album and did one of the better tracks on there (Deep Water). This Nas track could come from those Compton sessions, given that Dahi and Khalil worked together at the time.