  We are witnessing the emergence of a new digital art market, the art market
3.0. Blockchain technology has taken on a new sector which is still not well
known, Non-Fungible tokens (NFT). In this paper we propose a new methodology to
build a NFT Price Index that represents this new market on the whole. In
addition, this index will allow us to have a look on the dynamics and
performances of NFT markets, and to diagnose them.
