Here are some previously unreleased Big Proof tracks. We have a J. Dilla Tribute track from Proof, and 2 unreleased tracks.
Proof – J Dilla Tribute (2006 Unreleased) Download
Proof – Unreleased Track 4 (2006 Unreleased) Download
Proof – Unreleased Track 2 (2006 Unreleased) Download