Blockchain technology is a revolutionary way of storing and tracking data, while also making what data accessible to anyone. it is away of organizing data in a single public list off all historical transaction date anyone can view but cannot edit. This public list of transaction is collectively known as the blockchain ledger.

After examining the layer off a blockchain, we will be using a blockchain tool called a blockchain explorer. To look into the specifics of the Ethereum Blockchain structure

The term blockchain can be used as a noun - the bitcoin blockchain - or as an adjective - blockchain technology. either way, blockchain refers to the entire structure cryptocurrencies are built on

Zooming in from the outside, there are 3 leveles of structure in a blockchain

1. The overall blockchain is made up of blocks that are linked together in order

2. Blocks are made up of grouf of transaction put together

3. Transaction are amount of money send between to adreses on the network