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Blockchain with Hyperledger Fabric - Second Edition

You're reading from Blockchain with Hyperledger Fabric - Second Edition

Product type Book

Published in Nov 2020

Publisher Packt

ISBN-13 9781839218750

Pages 756 pages

Edition 2nd Edition

Languages

Concepts

Authors (6):

Nitin Gaur

Anthony O'Dowd

Petr Novotny

Luc Desrosiers

Venkatraman Ramakrishna

Salman A. Baset

View More author details

Table of Contents (18) Chapters

Preface

1. Blockchain – An Enterprise and Industry Perspective

2. Exploring Hyperledger Fabric

3. Business Networks

4. Setting the Stage with a Business Scenario

5. Designing Smart Contract Transactions and Ledger Data Structures

6. Developing Smart Contracts

7. Developing Applications

8. Advanced Topics for Developing Smart Contracts and Applications

9. Network Operation and Distributed Application Building

10. Enterprise Design Patterns and Considerations

11. Agility in a Blockchain Network

12. Governance – A Necessary Evil of Regulated Industries

13. Life in a Blockchain Network

14. Hyperledger Fabric Security

15. Blockchain's Future, Protocol Commercialization, and Challenges Ahead

16. Another Book You May Enjoy

17. Index

The ledger

With our solid grasp of a multi-party transaction, we're ready to see how it is stored at the heart of a Hyperledger Fabric blockchain system—in a ledger. Figure 6.3 shows a sample Hyperledger Fabric ledger:

Figure 6.3: A Hyperledger Fabric ledger has two major components: a state database and a blockchain

We can see that there are two parts to a ledger—a state database and a blockchain. The state database holds the current value of all objects in the ledger, while the blockchain holds a history of all transactions affecting these objects. These are the two key data structures with which our smart contracts and application programs will interact.

Make no mistake though, the blockchain is the primary component of the ledger. That's because it generates the state database. If the state database was deleted or lost, we could regenerate it from the blockchain by replaying all the transactions contained within it. In contrast, if the...

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Authors (6)

Nitin Gaur

Nitin Gaur, is the director of IBM's Blockchain Labs, and an IBM Distinguished Engineer.

See other products by Nitin Gaur

Anthony O'Dowd

Anthony O'Dowd is a Distinguished Engineer at IBM, focusing on Blockchain. He led IBM's contribution to the design and development of the new smart contract and application SDKs found in Hyperledger Fabric v2. Anthony has also made significant contributions to Hyperledger Fabric documentation and samples.

See other products by Anthony O'Dowd

Petr Novotny

Petr Novotny is a research scientist at IBM Research, with an MSc from University College London and PhD from Imperial College London, where he was also a post-doctoral research associate.

See other products by Petr Novotny

Luc Desrosiers

Luc Desrosiers is an IBM-certified IT architect with 20+ years of experience.

See other products by Luc Desrosiers

Venkatraman Ramakrishna

Venkatraman Ramakrishna is an IBM researcher, with a BTech from IIT Kharagpur and PhD from UCLA.

See other products by Venkatraman Ramakrishna

Salman A. Baset

Dr. Salman A. Baset is the CTO of security in IBM Blockchain Solutions.

See other products by Salman A. Baset

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