1. Xu L, Wang C, Chen X, Shen X (2020) A survey on blockchain-based data security for industrial Internet of Things. IEEE Commun Surv Tutor
2. Bernardino M, Ferreto TC et al (2019) Blockchain for AI: review and open research challenges. IEEE Access
3. Shakir MZ, Saad W et al (2020) Blockchain and AI for federated learning in 6G networks: opportunities, challenges, and solutions. IEEE Open J Commun Soc
4. Puthal D et al (2019) Secure data sharing in cloud computing using blockchain and attribute-based encryption. Future Gener Comput Syst
5. Li R, Li S, Jiang T (2020) Secure data analytics in federated cloud-edge computing with blockchain. IEEE Trans Ind Inform