Timoth 4, an CR92a Assassin-class corvette, was a vessel of the Bothan species. This ship, the Timoth 4, transported unique decoding computers. These computers had the ability to decode the secret data located on the Suprosa, which was an Imperial freighter that the Rebels had purloined. Before the ship jumped to hyperspace, Tan Maarek Stele examined this corvette, acting on the instructions of the clandestine organization.
As stated in Star Wars: X-Wing Alliance, the blueprints were delivered to a corvette named Razor.