Chiliz (CHZ) is the name of an Ethereum-based token used within the Socios.com sports fan engagement app. It serves as a utility token for the platform, enabling sports franchises to issue Fan Tokens on the Chiliz permissioned Ethereum sidechain. Socios.com seeks to change the relationship between sports fans and the teams they love. Clubs can use the platform to launch Fan Tokens via a Fan Token Offering — or FTO. These Fan Tokens are tradable on the Chiliz Exchange. Fan Tokens give holders special privileges, such as voting rights for club decision-making. The project's documentation provides choosing goal celebration songs and naming a club's training ground as examples. Active fans can earn exclusive rewards too. Launched in 2019, Socios.com quickly attracted the attention of major sporting clubs — particularly from the soccer world. Among others, the project's signings include Paris Saint-Germain, FC Barcelona, İstanbul Başakşehir and Juventus. Socios.com operates a private, proof-of-authority Ethereum sidechain. Fan Tokens are minted and fan polls are conducted on the Chiliz network. CHZ serves as a currency for the platform. Those wanting to buy Fan Tokens must do so using Chiliz. However, the Socios.com app gives the option to fund an account with fiat currency before exchanging it for CHZ. This makes Socios.com more accessible to those not familiar with cryptocurrencies.