Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Lea Uradu, J.D., is a Maryland state registered tax preparer, state-certified notary public, ...

Michael Boyle is an experienced financial professional with more than 10 years working with financial planning, derivatives, equities, fixed income, project management, and analytics. Timothy Li is a ...

Have you ever had an idea and wondered, "Will this work?" That's where "Proof of Concept" comes in. Think of it as a small test or experiment for your idea. Before diving in fully, you try out a basic ...

Proof of personhood (PoP) tries to make online participation Sybil-resistant by ensuring “one human = one account,” without full doxxing. PoP helps most when governance ...

Security on the blockchain has always been one of the key issues facing digital currencies. With no centralized provider, cryptocurrencies like Bitcoin and Ethereum had the potential to become ...

With 15 years of immersion in the world of personal finance, Ashley Kilroy simplifies financial concepts for individuals striving toward financial security. Her expertise has been showcased in ...

Last June 23 marked the 25th anniversary of the electrifying announcement by Andrew Wiles that he had proved Fermat’s Last Theorem, solving a 350-year-old problem, the most famous in mathematics. The ...