Book Image

Blockchain Developer's Guide

By : Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty
Book Image

Blockchain Developer's Guide

By: Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty

Overview of this book

Blockchain applications provide a single-shared ledger to eliminate trust issues involving multiple stakeholders. It is the main technical innovation of Bitcoin, where it serves as the public ledger for Bitcoin transactions. Blockchain Developer's Guide takes you through the electrifying world of blockchain technology. It begins with the basic design of a blockchain and elaborates concepts, such as Initial Coin Offerings (ICOs), tokens, smart contracts, and other related terminologies. You will then explore the components of Ethereum, such as Ether tokens, transactions, and smart contracts that you need to build simple DApps. Blockchain Developer's Guide also explains why you must specifically use Solidity for Ethereum-based projects and lets you explore different blockchains with easy-to-follow examples. You will learn a wide range of concepts - beginning with cryptography in cryptocurrencies and including ether security, mining, and smart contracts. You will learn how to use web sockets and various API services for Ethereum. By the end of this Learning Path, you will be able to build efficient decentralized applications. This Learning Path includes content from the following Packt products: • Blockchain Quick Reference by Brenn Hill, Samanyu Chopra, Paul Valencourt • Building Blockchain Projects by Narayan Prusty
Table of Contents (37 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Lack of interoperability


Current blockchain technologies do not easily interoperate. While it is possible to write an application that can communicate with multiple blockchains, those blockchains do not have the natural capability to communicate with each other. In many cases, the fundamental approach to transactions and governance may not be compatible. For instance, in the Ethereum network, any user can send any token to any other user, no permission required by the recipient. The recipient is free to ignore the new tokens if they wish, but they still have them (which results in some interesting tax questions). In the Stellar network, however, a user must issue a trustline to another in order to receive custom tokens issued by that user.

Similarly, many networks offer multisignature and multiuser wallets on-chain. However, without a centralized application sitting outside the blockchains themselves, there is no way for users to easily manage all of these networks in one place. This is part...