Book Image

Building Blockchain Projects

By : Narayan Prusty
Book Image

Building Blockchain Projects

By: Narayan Prusty

Overview of this book

Blockchain is a decentralized ledger that maintains a continuously growing list of data records that are secured from tampering and revision. Every user is allowed to connect to the network, send new transactions to it, verify transactions, and create new blocks, making it permission-less. This book will teach you what blockchain is, how it maintains data integrity, and how to create real-world blockchain projects using Ethereum. With interesting real-world projects, you will learn how to write smart contracts which run exactly as programmed without any chance of fraud, censorship, or third-party interference, and build end-to-e applications for blockchain. You will learn about concepts such as cryptography in cryptocurrencies, ether security, mining, smart contracts, solidity, and more. You will also learn about web sockets, various API services for Ethereum, and much more. The blockchain is the main technical innovation of bitcoin, where it serves as the public ledger for bitcoin transactions.
Table of Contents (16 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

What are permissioned DApps?

Until now, we have been learning about DApps, which are completely open and permissionless; that is, anyone can participate without establishing an identity.

On the other hand, permissioned DApps are not open for everyone to participate. Permissioned DApps inherit all properties of permissionless DApps, except that you need permission to participate in the network. Permission systems vary between permissioned DApps.

To join a permissioned DApp, you need permission, so consensus protocols of permissionless DApps may not work very well in permissioned DApps; therefore, they have different consensus protocols than permissionless DApps. Permissioned DApps don't have internal currency.