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The best way to get a good understanding of the blockchain is to build one.

This post will walk you through how I built my own blockchain using Python and MongoDB.

What is a Blockchain?

A blockchain is a distributed database that maintains an ever-growing list of records called blocks. Each block contains data (such as transactions or smart contracts) and has its own unique hash, which serves as a digital fingerprint for that specific block. The hash also includes the hash of the previous block in the chain, linking all blocks together like links in a chain — hence “blockchain”
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