what are the coins in john wick

In the John Wick universe, gold coins are used as currency among the criminal underworld. They are used to pay for various underworld services, such as medical care or disposal of bodies. The coins are also used to signify collateral for more intangible things, like when someone asks for a service or a favor. The coins are not actual currency, but rather a physical manifestation of a social contract. The monetary value of the coins does not matter, as they are metaphorical vessels that symbolize a favor. The coins are manufactured and distributed by the High Table, an international agency that governs the criminal underworld. The coins are mostly used in the Continental Hotel chains for various underworld services, but other underworld services can also be paid by the coins.