Look inside

about the technology

In traditional business systems, ensuing fair play in data records falls to third-party auditors, regulators, and host services. Permissioned blockchains, also known as distributed ledger technologies (DLT), promise to change that. Using the immutable encoding of blockchain technology, permissioned blockchains get rid of expensive third party mediators and allow all actors to collaborate on a shared database without needing to trust each other. The potential applications of these immune-to-fraud electronic records are huge, including supply chain management, finances for charity spending, royalty payments, and high-level asset trading.

about the book

Permissioned Blockchains in Action is a tool-agnostic guide to creating innovative applications using blockchain technology. Expert authors Mansoor Ahmed-Rengers and Marta Piekarska-Geater share the insight they’ve gained deploying blockchain systems to production, including essential considerations for software maintenance and the unique security challenges of distributed apps. You’ll go from the why, to the what, to the how of permissioned blockchains, putting theory into practice to implement a simple calculator, a betting game with complete UI, and finally create your capstone project: a centrally banked digital currency. Complex theory and principles are illustrated throughout with byte-sized coding exercises and use cases inspired by the authors’ work in the field. By the time you’re done reading, you’ll be ready to take the plunge into modelling real-world relations as blockchain applications.

what's inside

• Writing smart contracts and distributed applications using Solidity
• Configuring DLT networks
• Creating privacy mechanisms for distributed apps
• Designing blockchain solutions for specific use cases
• Utilizing oracles in distributed applications
• Identity management in permissioned blockchains networks
• A detailed comparison of existing permissioned blockchain frameworks

about the reader

For experienced software developers. No knowledge of blockchain required.

about the authors

Mansoor Ahmed-Rengers is a security researcher, currently pursuing his PhD on the security of blockchain technologies at the University of Cambridge. He is the author of five blockchain research papers, the inventor of the Robust Round Robin consensus algorithm, and holds two patents on managing blockchain data.

Marta Piekarska-Geater serves as the Director of Ecosystem at Hyperledger. Marta studied in Warsaw and Berlin, obtaining a double Masters and a PhD in Computer Science. In 2015 she drunk the Kool Aid and joined Blockstream. As part of her role in Hyperledger Marta evangelizes technology and Open Source at conferences around the world and helps enterprises with applying permissioned Blockchains to their use-cases. Marta also formed the W3C Blockchain community Group and is a valued member of ID2020, DIF, Sovrin Technical Governing Board, Cambridge Blockchain Society.