Block space is limited: The Bitcoin blockchain can only process some 10 transactions per second, at most. To resolve this, Bitcoin’s technical community is developing second-layer protocols that ...

Loose change was scarce last year. Retail and restaurant industries collected less cash from customers, so had fewer coins to deposit with their banks, while limited hours and new safety protocols at ...

This is the final article about collecting “key” coins, that is, the coins that have the lowest mintage and the highest value in a series. Previous articles covered cents through quarters, now we’ll ...

Key Bridge coins: They worked for the U.S.S. Constellation. The steel salvaged from the deck of the Dali and the bottom of the Patapsco River can certainly be piled up and sold for salvage for a few ...

New research examines how investor behavior, wallet architectures, and operational security practices determine what genuine self-custody requires in 2026. The foundational promise of cryptocurrency ...