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You're reading from  Hands-On Blockchain for Python Developers

Product typeBook
Published inFeb 2019
Reading LevelExpert
PublisherPackt
ISBN-139781788627856
Edition1st Edition
Languages
Python
Concepts
Blockchain
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Author (1)
Arjuna Sky Kok
Arjuna Sky Kok
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Arjuna Sky Kok

Arjuna Sky Kok has experience more than 10 years in expressing himself as a software engineer. He has developed web applications using Symfony, Laravel, Ruby on Rails, and Django. He also has built mobile applications on top of Android and iOS platforms. Currently, he is researching Ethereum technology. Other than that, he teaches Android and iOS programming to students. He graduated from Bina Nusantara University with majors in Computer Science and Applied Mathematics. He always strives to become a holistic person by enjoying leisure activities, such as dancing Salsa, learning French, and playing StarCraft 2. He lives quietly in the bustling city of Jakarta. In loving memory of my late brother, Hengdra Santoso (1979-2011).
Read more about Arjuna Sky Kok

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Summary

In this chapter, we have studied IPFS. We started by looking at the motivations of the IPFS project and its history. Although IPFS is not a part of the blockchain technology, it is similar to blockchain because it complements blockchain technology. We then learned about the data structure of the content that we saved in the IPFS filesystem. This data structure is Merkle Directed Acyclic Graph (DAG), which is based on the Merkle tree. We created simple Merkle tree and Merkle DAG libraries to understand the uniqueness of these data structures. Merkle trees provide an easy way to check the integrity of partial data, while Merkle DAGs are used when we want to save a directory with files and we want to keep the filenames. Then, we learned about the peer-to-peer networking aspect of a Kademlia distributed hash table. The distance between nodes is based on the XOR distance. The...

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Hands-On Blockchain for Python Developers
Published in: Feb 2019Publisher: PacktISBN-13: 9781788627856
© 2019 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Arjuna Sky Kok

Arjuna Sky Kok has experience more than 10 years in expressing himself as a software engineer. He has developed web applications using Symfony, Laravel, Ruby on Rails, and Django. He also has built mobile applications on top of Android and iOS platforms. Currently, he is researching Ethereum technology. Other than that, he teaches Android and iOS programming to students. He graduated from Bina Nusantara University with majors in Computer Science and Applied Mathematics. He always strives to become a holistic person by enjoying leisure activities, such as dancing Salsa, learning French, and playing StarCraft 2. He lives quietly in the bustling city of Jakarta. In loving memory of my late brother, Hengdra Santoso (1979-2011).
Read more about Arjuna Sky Kok

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