Though Bitcoin's (BTC) transaction history is securely sequenced using proof-of-work (PoW), it consumes a lot of electricity and the number of transactions it can handle at once is limited. As a ...

What is proof-of-authority (PoA)? One of the most revolutionary technologies in recent years is blockchain. Blockchain, which first emerged as a decentralized public ledger for the Bitcoin (BTC) ...

Most major cryptocurrencies use one of these two consensus mechanisms. Many, or all, of the products featured on this page are from our advertising partners who compensate us when you take certain ...

As digital technology advances, the need for secure and reliable methods to prove humanness grows. Traditional identity verification systems focused on recognizing individuals—their identity, ...

“Hello world!” wrote Julia Angwin, the founder of Proof and former editor-in-chief of The Markup. “Welcome to Proof News. Proof is meant to be an answer to the existential question that journalists ...

E. Napoletano is a former registered financial advisor and award-winning author and journalist. Patrick McGimpsey is passionate about crypto and its impact on the financial world. He has over seven ...

Erika Rasure is globally-recognized as a leading consumer economics subject matter expert, researcher, and educator. She is a financial therapist and transformational coach, with a special interest in ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Erika Rasure is globally-recognized as a leading consumer economics subject matter expert, ...