This book constitutes the refereed proceedings of the Second EAI International Conference on Blockchain Technology and Emerging Technologies, BlockTEA 2022, held in Virtual Event, during November 21-22, 2022. The 10 full papers included in this book were carefully reviewed and selected from 28 submissions.

Smart contract.- ID-based self-encryption via Hyperledger Fabric based smart contract.- Scalable Smart Contracts for Linear Regression Algorithm Syed.- Combining ID’s, Attributes, and Policies in Hyperledger Fabric.- A Secure Microgrid Power Transaction Scheme Based on Hyperledger Fabric.- Privacy protection.- An Outsourced Multi-Authority Attribute-Based Encryption for Privacy Protection with Dynamicity and Audit.- A Privacy-preserving and Auditable Scheme for Interfacing Public Blockchain with Consortium Blockchain.- Data Cooperatives for Trusted News Sharing in Social Media.- NFT and Machine learning.- A Novel Fast Recovery Method for HT tamper in Embedded Processor.- MIA-Leak: Exploring Membership Inference Attacks in Federated Learning Systems.- SoK : Can NFTs Solve The Economic Problems of Countries with Ancient Heritage? Egypt as a Case Study.