A blockchain is a digital ledger of transactions that is replicated and distributed across a large network of computer systems, or nodes, to record and secure information. Each block in the blockchain ...

Since the notion of a “smart city” is somewhat vague on its own, it helps to have a clear definition of what a smart city is and is not.

(1) The distinction between a main Layer 1 blockchain such as Bitcoin and Ethereum and a Layer 2 blockchain such as rollup chain. A third layer separates even more functions. See Layer 1 blockchain, ...

Orphan blocks in blockchain occur when blocks with less proof are outpaced by others, often due to network delays. Learn how they affect blockchain integrity.

Discover how Ethereum 2.0 transitioned the blockchain to proof-of-stake in 2022, enhancing scalability, reducing energy use ...

Put simply, Ethereum staking is the process of locking up an amount of ETH – the native cryptocurrency of the Ethereum blockchain – for a specified period of time in order to contribute to the ...

The very essence of blockchain, the actual blockchain meaning, was to create a technology that was impossible to hack, thus reduce the number of crimes that take place in the online financial world.

A crypto services company founded in 2011 that established one of the early block explorers to track crypto transactions. Today, Blockchain.com provides a crypto exchange and crypto wallet. Originally ...

Staci Warden shares how blockchain solves expensive banking reconciliation issues.

What is the FIFA blockchain? In May 2025, FIFA announced the launch of a dedicated layer-1 blockchain utilizing Avalanche’s Subnet technology. This transition marks a departure from its previous use ...