TobyBW

 or a similar main sports website. If for some reason there are no 2023 NBA Finals, this is resolved to PROB at the end of 2023. (This also includes if a loser is declared without any NBA Finals being played, e. g. via an armchair decision. If any amount of actual NBA Finals basketball is played and a losing team is declared following that, I will resolve to that team.) 

To clarify: this will resolve to the single team that makes it to the NBA Finals series and loses, as long as that series occurs (see above).