January 2019
Beginner to intermediate
372 pages
11h 17m
English
Content preview from Foundations of Blockchain
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Merkle hash trees
A Merkle tree is a binary tree where all the leaf nodes represent hashes of the data blocks. Each parent node has the hashed value of the hashes of its children. Hashing continues until the root node of the tree. Merkle trees are used to summarize bulk sets of data and create a fingerprint for each set.
A tree is a data structure in computer science that consists of a root node and a subtree of parent and children nodes and is represented by positioning a root node at the top. A binary tree is a tree where each parent has at most two nodes. Merkle trees are used in Bitcoin, Ethereum, and other blockchain applications to summarize all the transactions included in each block. SHA-256 is used as a hash function in bitcoin's ...
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