In this introductory episode, we discuss what makes up blocks and block headers. We also cover a bit about state vs history, what exactly makes up a transaction and do a quick intro to a Merkle Tree.

For more, please check out these resources:

• https://www.youtube.com/watch?v=_160oMzblY8
• https://ethereum.stackexchange.com/questions/268/ethereum-block-architecture
• https://www.coursera.org/lecture/cryptocurrency/bitcoin-blocks-I5uc7
• https://en.wikipedia.org/wiki/Merkletree