- A chain of blocks. A distributed accounting book used to record all the movements and balances of Bitcoin accounts in an unalterable, auditable and reliable way.
- It is a database distributed among all the nodes of the Bitcoin network, where all have copies of all the transactions made, in order to provide security to the network.
- These transactions are grouped into blocks and validated by the network miners to join the chain.
- Once a block joins the string it can not be modified or deleted. This chain of blocks is public, so that everyone can see that it was not adulterated.
Definitions and concepts of the word Blockchain