There are multiple artists with this name:

1) Putridity is a brutal death metal band from Italy. They formed in 2005 and have recently released their full-length debut "Mental Prolapse Induces Necrophilism" in 2007. Before that releasing two demos in 2005 and 2006. They are also signed to Permeated records which they released their debut from and are looking to write new material for, their followup, an early release in 2009.

2) Putridity is a Death metal/grindcore band from Poland. They formed in 2000 and have released 2 demos and splits. One of those splits in 2003 with Deception sparked off another split in 2004 with Infatuation of Death and was rleased by Redrum666 Records. Amazing thing about this band is that they had no lyrics untill the upcomming third demo, which is being recorded for a 2008 release.