ProChain is a decentralised digital advertising data ecosystem based in Singapore. ProChain is working towards connecting advertisers, media and developers and increasing the efficiency of the advertising business by fighting traffic fraud and exploring big data technology. Through Prochain's platform, advertisers generate a smart contract as tasks to be completed by the users creating a direct channel between them to remove third parties and fraud.

The PRA is the token to be used in the ProChain ecosystem and based in an Ethereum ERC 20 token. PRA is a payment method between advertisers and users.