Blockchain

Computational thinking, problem-solving and programming

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).

Videos

The video below is easily the best video explanation 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:

Give a sequence of brief answers with no explanation.

Propose a solution, hypothesis or other possible answer.