NFT's are units of data stored on blockchains, that certify a digital asset to be unique.

They can be used for a wide range of digital commodities such as photos, videos, audio and other digital files.

They value of such NFT''s can be huge, as recently demonstrated by Twitter founder Jack Dorsey, who sold his first tweet for $2.5 million.

This has led to a scramble to be involved in this relatively new but highly lucrative craze.