# 3.7. Proof of Payment

In centralized casinos, players actually don't know whether the casino has enough funds to pay out. In WEB2, this problem is widespread in the online entertainment industry. Many online casinos actually do not have enough funds to pay out and will either shut down the website or refuse to pay out the players.

  In WinFi, all games are automatically paid out by contracts. Players can check the amount of money in these Bet payout contracts in real-time. If the payout amount is insufficient, WinFi Foundation will draw funds from its provable asset tree to supplement the payout contract.

  WinFi provides a way for players to verify the validity and authenticity of the payable assets in real-time.