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.

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.

(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, ...

Cryptocurrency difficulty indicates how challenging it is to mine a block in blockchain networks like Bitcoin. Learn what affects this mining process.

Explore how CAP theorem affects blockchains, trade-offs in consistency, availability, partition tolerance, and real-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 ...

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 ...

Financial institutions may be warming to tokenization and on-chain settlement, but limits around scale, speed, and coordination have kept most of those experiments from moving beyond pilots. Citadel ...