Core Concepts

Proof of Work - POW

Proof of Work Definition by Lisk Academy

Proof-of-Work (PoW) system (or protocol, or function)

Proof-of-Work Protocols

Bitcoin-type proof-of-work

Proof of Work - Summary

Proof-of-Work (PoW), the term was coined by Cynthia Dwork, formalized in a 1999 paper by Markus Jakobsson and Ari Juels.

There are two mainstream classes of proof-of-work protocol:

  • Challenge-response
  • Solution-verification

Proof of work is also known as mining. 

Proof of work mean hardwork for computers.

Miners must compite to solve a difficult puzzle with their resources and help together by competing to build the public ledger.