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.
The target of the theft is The Gutenberg Bible. The Gutenberg Bible is the first book in the western world printed with moveable type. Although the name suggests there is only one copy, there are actually 42 known copies, only 21 of which are complete. Most are held in museums, libraries and at scholarly institutions worldwide, including a complete copy at the Morgan Library and Museum in New York and another at the Huntington Library in San Marino, California.
At the reception, Finch admires a codex on display. A codex is an early form of book, often illuminated, with vellum or parchment pages accordion-folded and stitched, making it possible to lay the book out at one long document when the stitching is removed.
The diversionary theft at the event was of a painting by Cézanne. Paul Cézanne was a French post-impressionist painter, known for his paintings of ordinary French life and people. He is regarded by some as the father of contemporary art.
Kelli meets Cyril at a bar called "The Purloined Letter", which draws its name from a short story by Edgar Allen Poe.
One of the security guards says, "There's a Five-O at the gate", when Fusco arrived to pick up Reese. The term "Five-O" refers to the 1968 CBS police drama Hawaii Five-O which depicted an elite police unit in Hawaii, the 50th state. A remake of the show currently runs on CBS.
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.
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 Baylor Zimm.