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 ...

Blockchain is the core technology behind Bitcoin and thousands of cryptocurrencies and has promising potential beyond digital currencies. Many, or all, of the products featured on this page are from ...

[Editor’s Note: Atul Ajoy is a 10th grader at Redmond High School, a tech enthusiast, startup founder, blogger and event organizer. He attended Microsoft Build in Seattle this week for the second year ...