Proof

Just prior to the Siege of Trenzalore, the Eleventh Doctor presented a severed Dalek eyestalk as "proof of courage and comradeship" aboard what he soon found to be a Dalek ship. (TV: The Time of the Doctor ^[+]Loading...["The Time of the Doctor (TV story)"])

Dominic Skinner: "You've proven you've got the dedication and flair to go all the way!" (GAME: Wonder Chase ^[+]Loading...{"ed":"Find the Stickers [145] 🎃","1":"Wonder Chase (video game)"})

You may be looking for Professor Proven.

Dave Tonbridge had a photo of the wedding of his parents to prove that the Ninth Doctor was their best man. (PROSE: Have You Seen This Man? ^[+]Loading...["Have You Seen This Man? (short story)"])

The new webmaster of Who is Doctor Who? felt as if he was being bombarded with proof of the supernatural by March 2005. (PROSE: The Doctor Was Involved in the Dummy Massacre ^[+]Loading...["The Doctor Was Involved in the Dummy Massacre (short story)"])

Mx believed that the pictures of the crash of an alien spaceship in Central London proved that it wasn't a hoax. (PROSE: Alien landing confirmed ^[+]Loading...["Alien landing confirmed (short story)"])

After a visitor used a selfie spot, Dominic Skinner may have told them that they'd proven that they had the dedication and flair to "go all the way". (GAME: Wonder Chase ^[+]Loading...{"ed":"Glow Up Update","1":"Wonder Chase (video game)"})