Aventus is a decentralized, autonomous protocol for event tickets exchanges. Aventus’ aim is to bridge the primary and secondary markets for ticket sales by reducing ticket scalping, fraud and other rent-seeking behaviors. Aventus’ realizes these aims in part through combining primary and secondary ticket markets into one rail and giving event sponsors and organizers the ability to customize how tickets are sold on each market. Economic incentives for scalping tickets and engaging in rent seeking behaviors are controlled by associating tickets purchased with buyers’ account ID on the blockchain, making the resale of tickets on secondary markets trackable. The secondary market is also anonymized, with ticket buyers identities kept secret from sellers, discouraging sellers from collecting additional payments off-chain. Aventus’ token, AVT, confers holders access and voting rights.