Above you can stream the full album of 1972 - Obfusc/ation, which is the sixth and final volume from Pink Floyd's box set The Early Years 1965-1972. The two-disc set focuses exclusively on the year 1972, and includes remixes, alternate takes, and live concert audio from their legendary Live at Pompeii performance.
The band also shared a two-disc set called Cre/ation which includes highlights from the entire 1965-1972 box set.
This and the rest of The Early Years 1965-1972 material is currently available on Amazon.