As Richard G Brown, chief technology officer at R3, one of the world’s largest blockchain companies, explains a blockchain can store the entire record of all peer-to-peer transactions, which can not only be easily verified but which also doesn’t let anyone manipulate or modify the data.

A decentralised or distributed ledger, blockchain has changed the way we perceive ‘trust’ in a system.

Though the origin of blockchain could easily be traced back to 1991 when research scientists Stuart Haber and W. Scott Stornetta at Bell Communications Research (Bellcore) published numerous papers on cryptography, blockchain as a term found its first mention in the Satoshi Nakamoto’s white paper.

In order for a block to be added to the blockchain, however, four things must happen:A transaction must occurThat transaction must be verified.

We will explain the detailed architecture of PoS and PoW in future articles in the blockchain series. | To read full story, visit https://startuparound.com/read/1574577108.6614325/What-Is-Blockchain??ref=audio_experience