Blockchain – ICBC 2021 4th International Conference, Held as Part of the Services Conference Federation, SCF 2021, Virtual Event, December 10–14, 2021, Proceedings

This book constitutes the proceedings of the 4th International Conference on Blockchain, ICBC 2021, held as part of SCF 2021, held as a Virtual Event, during December 10–14, 2021.

The 8 full papers and 1 short paper presented were carefully reviewed and selected from 31 submissions. They deal with all topics regarding blockchain technologies, platforms, solutions and business models, including new blockchain architecture, platform constructions, blockchain development and blockchain services technologies as well as standards, and blockchain services innovation lifecycle including enterprise modeling, business consulting, solution creation, services orchestration, services optimization, services management, services marketing, business process integration and management.

Research Track.- Agrichain: A blockchain-based food supply chain management system.- EMRs with Blockchain: A distributed democratised Electronic Medical Record sharing platform.- Decentralized Authorization in Web Services using Public Blockchain.- New Gold Mine: Harvesting IoT Data through DeFi in a Secure Manner.- Alternative Difficulty Adjustment Algorithms for Preventing Selfish Mining Attack.- From Bitcoin to Solana - Innovating Blockchain towards Enterprise Applications.- Application Track.- Recycling Hashes from Reversible Bitcoin Mining to Seed Pseudorandom Number Generators.- Preserving Privacy in Private Blockchain Networks.- Short Paper Track.- CBProf: Customisable Blockchain-as-a-service Performance Profiler in Cloud Environments.