Blockchain

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Revision as of 14:03, 8 March 2020 by Mr. MacKenty (talk | contribs)
Computational thinking, problem-solving and programming[1]

A block chain is a growing list of records, called blocks, that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree).[2]


A blockchain is a decentralized, distributed, and oftentimes public, digital ledger that is used to record transactions across many computers so that any involved record cannot be altered retroactively, without the alteration of all subsequent blocks[3]

A ledger is a permanent summary of all amounts entered in supporting journals which list individual transactions by date.[4]

Videos[edit]

The video below is easily the best I have found explaining blockchain. I would suggest you watch it several times.

The video below is a very good high-level overview of blockchain:

See also[edit]

Everything below this line is not yet completed for student learning[edit]

References[edit]