  Blockchain is gaining extensive attention due to its provision of secure and
decentralized resource sharing manner. However, the incumbent blockchain
systems also suffer from a number of challenges in operational maintenance,
quality assurance of smart contracts and malicious behaviour detection of
blockchain data. The recent advances in artificial intelligence bring the
opportunities in overcoming the above challenges. The integration of blockchain
with artificial intelligence can be beneficial to enhance current blockchain
systems. This article presents an introduction of the convergence of blockchain
and artificial intelligence (namely blockchain intelligence). This article also
gives a case study to further demonstrate the feasibility of blockchain
intelligence and point out the future directions.
