Proof Of Work
This definition comes from the technical glossary.
Definition
A hash below a target value which can only be obtained, on average, by performing a certain amount of brute force work—therefore demonstrating proof of work.
Synonyms
- 
    Proof of work 
- 
    POW 
Links
- 
    Proof of work — Developer Guide 
- 
    Proof of work — Bitcoin Wiki