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Learning Bitcoin

You're reading from   Learning Bitcoin Embrace the new world of fiance by leveraging the power of crypto-currencies using Bitcoin and the Blockchain

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Product type Paperback
Published in Oct 2015
Publisher
ISBN-13 9781785287305
Length 236 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (10) Chapters Close

Building an Escrow contract


Now that we've illustrated some ways in which we can program Bitcoin, let's apply it to a common example in the real world.

When buying and selling goods over the internet, the two parties involved may choose to exchange the payment through an Escrow account. The purpose of the account is to hold the payment until the item is delivered as agreed. If there is a dispute, a refund is requested or a moderator is introduced to resolve the issue.

Using the Blockchain, we can build a solution that empowers each party with a private key. A multi-signature address is created to hold the payment without the need for a third party to hold the funds. To generate the address, three keys are issued, one each to the buyer, the seller, and the moderator. Of the keys issued, two are required to release the payment.

Given the item is delivered as agreed, the seller generates a withdraw transaction and sends it to the buyer for the first signature. The buyer signs the transaction and...

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