A coin is a USDFC deposit straight from your wallet into the jukebox's till, a
Filecoin Pay account that is the jukebox's alone. A pick is a piece your wallet signs, written into the jukebox's
data set on Filecoin Onchain Cloud. Every listener folds the same queue; there is no shared clock, so this page
plays from the first track you have not heard. YouTube links and https audio streams. No backend.