In early 2018, Amos Meiri got the kind of windfall many startup founders only dream of. Meiri’s company, Colu, develops digital currencies for cities—coupons, essentially, that encourage people to ...

A blockchain is a kind of database invented in 2008 that stores and secures information in sequential blocks. Unlike the case with traditional databases, a blockchain’s contents are not kept on a ...

A blockchain is a network of decentralized and distributed data (ledger), meaning the users share the ownership and management of the network through computer nodes. As a database, blockchain stores ...

Rapid technological change has led to a global deluge of data. Certain aspects of shared information—authenticity, verification, speed, and integrity—are key to good governance and to helping ...

The idea of a blockchain was first conceived as the mechanism supporting Bitcoin (BTC +0.16%). To solve the double-spending problem associated with digital currencies, a person known as Satoshi ...