For the little girls of tomorrow, our use of blockchain gives us the opportunity to fight against the process of invisibilization of female artists in art history and to guarantee our artists the matrimony of their work. Matrimoine (as opposed to patrimoine) is made up of the memory of female creators of the past and the transmission of their works. Equality between men and women requires that we value women's heritage. Thus, Heritage and Matrimoine together constitute our common, mixed and egalitarian cultural heritage.