Arc of the Testimony

Arc of the Testimony is the second and final album by the American jazz fusion band Arcana. It was released on bassist Bill Laswell's Axiom label on October 14, 1997. Unlike the trio configuration on the first album, this project features a spacier, slightly less abstract form of fusion music. Bill Laswell and drummer Tony Williams composed and developed the music, and co-produced the album together.

Laswell invited a number of musicians to contribute, including legendary tenor saxophonist Pharoah Sanders. Other contributors included alto saxophonist Byard Lancaster, and electric guitarists Nicky Skopelitis and Buckethead. Tony Williams died suddenly on February 23, 1997, while this album was still in production, and thus it represents his last recorded work. Laswell's M.O.D. Reloaded label re-released this album in 2021 with a new track entitled "Black Money".