Abstract: Embodiments of the invention are systems and methods for computer game tournaments using digital assets stored in a digital asset wallet, comprising: a multiplayer system on a middleware server, wherein a single-player computer game on a computing device uses an application programming interface to communicate with the multiplayer system and to become a multiplayer game; a core system on a middleware server, wherein the core system manages computer game tournaments for the computer game on the computing device; a database server, wherein the database server stores information for the multiplayer system and the core system; and a smart contract, wherein the smart contract is deployed on a blockchain and the smart contract stores digital asset balances for users.

Abstract: A doormat for the enhanced cleaning of footwear. Exemplary embodiments include a doormat capable of hands free cleaning and drying of footwear, comprising a cleaning stage and a drying stage. Stepping onto the cleaning stage of the mat releases a cleaning fluid onto rotating sponges, which physically clean footwear while applying a cleaning solution. Stepping into the drying stage of the mat dries the footwear. The cleaning mat may also further comprise a supplemental cleaning stage and/or supplemental drying stage.

Abstract: A doormat for the enhanced cleaning of footwear. Exemplary embodiments include a doormat capable of hands free cleaning and drying of footwear, comprising a cleaning stage and a drying stage. Stepping onto the cleaning stage of the mat releases a cleaning fluid onto rotating sponges, which physically clean footwear while applying a cleaning solution. Stepping into the drying stage of the mat dries the footwear. The cleaning mat may also further comprise a supplemental cleaning stage and/or supplemental drying stage.