The episode title, Provenance, is a commonly used term in the fine arts trade. It refers to the artist, place of origin, history, and chain of custody or ownership of a work of artistic significance or of great value. Documented provenance is key to determining the authenticity and value of a piece. It often becomes critical to the determination of ownership of important works of art, particularly those that were stolen or were looted during events such as World War II.
According to Kelly's computer, the event at the museum takes place on January 7, 2014.
During the party, Shaw sees a man choking on a shrimp puff and slaps him hard on the back to force it out. Slapping a choking victim on the back is no longer recommended as it can force the blockage further into the throat. Initiating the Heimlich maneuver offers a better chance to force the blockage out.
Obnoxious shrimp puffs previously appeared in "Masquerade".
Cyril addresses Lin as "miláčku," which means "sweetheart" in Czech.
Possible reference to a previous episode: The man Shaw saved from choking is Warren Zimm, "a big-time investment banker". In "Risk", Reese protected a young investment banker named Adam Saunders who worked for a big investment bank named "Baylor Zimm".
One of the security guards says that "there's a Five-O at the gate", referring to Fusco picking up Reese. The term "Five-O" comes from the 1968 police drama Hawaii Five-O which depicted an elite police unit in Hawaii, the 50th state.