Blockchain

Block

Is made up of
- Header
  - height
  - previous hash
  - transactions hash
  - chain state hash
  - difficulty target
  - nonce
  - timestamp
  - version
- Transaction

Chain

Easy representation - linked list
Genesis block
- Starts the chain
- Height is 0
- Hardcoded, but valid

Mining

Verifying and adding transctions
Hard and time consuming
Adjusting blocks

Miner

Validate the chain
Download the chain
Proof of work
Transaction pool
Rewards