Anomaly detection in smart contracts based on optimal relevance hybrid features analysis in the Ethereum blockchain employing ensemble learning

Abstract

Blockchain architecture is based on distributed and decentralised technology used to store transaction records in blocks [1].These blocks are linked to each other based on the value of the hash address (previous hash) generated through a cryptographic mechanism [2].Blockchain technology has developed as an open ledger to record transactions in a distributed manner.New blocks will be created after the mining process is complete through the protocol consensus that requires each peer to verify transactions [3][4][5].