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Blockchain By Example

You're reading from   Blockchain By Example A developer's guide to creating decentralized applications using Bitcoin, Ethereum, and Hyperledger

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Product type Paperback
Published in Nov 2018
Publisher Packt
ISBN-13 9781788475686
Length 528 pages
Edition 1st Edition
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Authors (3):
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Xun (Brian) Wu Xun (Brian) Wu
Author Profile Icon Xun (Brian) Wu
Xun (Brian) Wu
Bellaj Badr Bellaj Badr
Author Profile Icon Bellaj Badr
Bellaj Badr
Richard Horrocks Richard Horrocks
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Richard Horrocks
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Table of Contents (13) Chapters Close

Preface 1. Say Hello to Blockchain FREE CHAPTER 2. Building a Bitcoin Payment System 3. Building Your Own Cryptocurrency 4. Peer-to-Peer Auctions in Ethereum 5. Tontine Game with Truffle and Drizzle 6. Blockchain-Based Futures System 7. Blockchains in Business 8. Creating an ICO 9. Distributed Storage IPFS and Swarm 10. Supply Chain on Hyperledger 11. Letter of Credit (LC) Hyperledger 12. Other Books You May Enjoy

Verifying our contract code on Etherscan

Having deployed our contracts to Rinkeby, we can now start telling the public about our token sale and wait for the investment to roll in. However, any conscientious investor would likely question the transparency of our deployments – how do they know our contracts can be trusted? As it stands, our contracts' bytecode can be viewed on EtherScan, but this isn't human-readable, and doesn't immediately help with convincing investors of our transparency.

One solution to this problem is to verify and publish our contract code on Etherscan, using the tool at https://rinkeby.etherscan.io/verifyContract. To do this, we require the following:

  • The contract addresses, which can be found in the output of the deployment stage.
  • The contract names, which we defined as PacktToken and PacktTokenSale.
  • The compiler version used by Truffle...
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