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 ...

Seriously, What the Hell Is a Blockchain? Blockchains are often explained with a lot of tech jargon by people in mathematics, cryptography, and network engineering. It turns out that blockchains are ...

Pete Rathburn is a copy editor and fact-checker with expertise in economics and personal finance and over twenty years of experience in the classroom. d3sign / Getty Images A blockchain is a secure ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Erika Rasure is globally-recognized as a ...

(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, ...

Bitcoin, Ethereum, and other cryptocurrencies have entered the mainstream discourse, but they’ve also been joined by a concept that is widely circulated, but poorly understood: “the blockchain” or ...