Blockchain Fundamentals
A blockchain is a chain of blocks, where each block is connected to the previous one through a hash (a unique cryptographic signature).
This connection ensures the security and immutability of the chain: if someone tries to modify a block, all the blocks that follow become invalid.
Inside each block there are transactions, which are exchanges of value between users. Transactions are first verified by the network nodes, then grouped together and included in a block.
When the block is validated and added to the blockchain, all the transactions inside it become final.
This connection ensures the security and immutability of the chain: if someone tries to modify a block, all the blocks that follow become invalid.
Inside each block there are transactions, which are exchanges of value between users. Transactions are first verified by the network nodes, then grouped together and included in a block.
When the block is validated and added to the blockchain, all the transactions inside it become final.
