January 2019
Beginner to intermediate
372 pages
11h 17m
English
Content preview from Foundations of Blockchain
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Blockchain consensus
Ethereum nodes mine blocks for the blockchain in a similar way to Bitcoin by using a Proof of Work-based algorithm. A node that appends a block ensures that a sufficient amount of computation is done on the block using a hash function. The average block creation time is limited to around 12 seconds.
Ethereum uses a Proof of Work algorithm called Ethash, which is an ASIC-resistant algorithm developed to overcome the centralization of the mining process. The mining requires the generation of a large dataset from the pseudorandom cache before computing the hash. Since memory is used during this process, it is resistant to ASIC-based mining devices. The verification process can be performed with low memory because it only ...
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