Skip to Main Content
Mastering Blockchain - Second Edition
book

Mastering Blockchain - Second Edition

by Ankur Daharwal, Imran Bashir, Pranav Burnwal
March 2018
Beginner to intermediate content levelBeginner to intermediate
656 pages
20h 9m
English
Packt Publishing
Content preview from Mastering Blockchain - Second Edition

Oracles

Oracles are an important component of the smart contract ecosystem. The limitation with smart contracts is that they cannot access external data, which might be required to control the execution of the business logic; for example, the stock price of a security product that is required by the contract to release the dividend payments. Oracles can be used to provide external data to smart contracts. An Oracle is an interface that delivers data from an external source to smart contracts.

Depending on the industry and requirements, Oracles can deliver different types of data ranging from weather reports, real-world news, and corporate actions to data coming from Internet of Things (IoT) devices. Oracles are trusted entities that use a ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Mastering Blockchain - Third Edition

Mastering Blockchain - Third Edition

Imran Bashir
Mastering Blockchain

Mastering Blockchain

Lorne Lantz, Daniel Cawrey

Publisher Resources

ISBN: 9781788839044Supplemental Content