The double-spend problem is a potential issue in digital cash systems where the same digital token can be spent more than once. This is a unique problem for digital currencies, as digital information ...

Over 84% of U.S. spot bitcoin ETF assets sit with a single custodian. Analysts warn the concentration could rattle a $77 ...

Bitcoin’s traditional 4-year halving cycle is no longer a reliable timing tool, even though it still matters structurally over the long term. Early cycles were effective because miner supply shocks ...