Banksy has shared a video featuring American artist Bob Ross confirming that the Reading prison artwork that mysteriously appeared earlier this week is his.The picture, which emerged on Monday morning (March 1), shows a prisoner – resembling famous inmate Oscar Wilde – escaping from the prison using a rope fashioned from bedsheets tied to a typewriter.Now, Banksy has uploaded a comical video to his Instagram account, which you can view below, in which he confirms the artwork is his and named it