Blockchain @ IBM Research – Zurich       


Elli Androulaki photoChristian Cachin photo photo Angelo De Caro photoAndreas Kind photo Matthias Neugschwandtner photo Alessandro Sorniotti photoBjoern Tackmann photo

Blockchain @ IBM Research – Zurich - overview

What is blockchain?

A blockchain is a continuously growing list of records, which are grouped into blocks and maintained in a distributed way. In a blockchain, each block contains a cryptographic hash of the previous block, which prevents changes to existing blocks at a later point in time. In conjunction with protocols for distributed consensus, blockchains are currently used as platforms to support global business transactions.