Blocks and chains A blockchain is a digital database that chronologically stores "blocks" of data. These blocks are linked together on what's known as the "chain." ...

A block is the fundamental unit of a blockchain that contains a set of validated transactions and cryptographic links to previous blocks, forming an immutable record in the blockchain network.

For anyone attempting to grasp the nature of Bitcoin, knowledge of the Genesis Block is key. It is not just part of history; ...

With a new initiative called Project Bloks, a team of Google researchers is trying to make coding a hands-on experience---literally.