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You're reading from Mastering Blockchain Programming with Solidity Write production-ready smart contracts for Ethereum blockchain with Solidity

Product type Paperback

Published in Aug 2019

Publisher Packt

ISBN-13 9781839218262

Length 486 pages

Edition 1st Edition

Languages

Solidity

Tools

Blockchain

Concepts

Blockchain

Author (1):

Jitendra Chittoda

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Table of Contents (21) Chapters

Preface

1. Section 1: Getting Started with Blockchain, Ethereum, and Solidity FREE CHAPTER

2. Introduction to Blockchain

3. Getting Started with Solidity

4. Control Structures and Contracts

5. Section 2: Deep Dive into Development Tools

6. Learning MetaMask and Remix

7. Using Ganache and the Truffle Framework

8. Taking Advantage of Code Quality Tools

9. Section 3: Mastering ERC Standards and Libraries

10. ERC20 Token Standard

11. ERC721 Non-Fungible Token Standard

12. Deep Dive into the OpenZeppelin Library

13. Using Multisig Wallets

14. Upgradable Contracts Using ZeppelinOS

15. Building Your Own Token

16. Section 4: Design Patterns and Best Practices

17. Solidity Design Patterns

18. Tips, Tricks, and Security Best Practices

19. Assessments

20. Other Books You May Enjoy

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Chapter 10

There are many multisig wallet contracts available that can be used by the developer and projects in production. Apart from the Gnosis multisig wallet that we discussed in this chapter, there is a new product from Gnosis, called Gnosis Safe (https://safe.gnosis.io/). The Gnosis Safe has recently been built and has not been battle-tested; however, Gnosis multisig is used mostly by projects, and had been battle-tested.
Yes, using the Gnosis multisig wallet contract you can receive or transfer any type of ERC token standard, such as ERC20 and ERC721 tokens.
Yes, a MultiSig-A wallet can also control a MultiSig-B wallet. For this to happen, the MultiSig-B contract must have the MultiSig-A's address as the owner in the owner's list.
As of now, if the number of owners in a Gnosis multisig wallet is greater than the number of required signatures, you cannot...

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Authors (1)

Chittoda

Jitendra Chittoda is a blockchain security engineer at ChainSecurity. His day job is to perform security audit on smart contracts and expose security vulnerabilities in Solidity and Scilla contracts. He has also developed a non-custodial, decentralized, P2P lending contracts for ETHLend. The Solidity contracts that he has developed or audited handle over $100 million worth of cryptoassets. He also served as a tech and security advisor in various ICO projects. Before finding his passion for blockchain, he coded in Java for over 11 years. He is the founder and leader of Delhi-NCR-JUG, a non-profit meetup group for Java. He holds a master's degree in computer applications and is regularly invited as a speaker at various conferences and meetups.

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