On Sunday, a home video of toddler Harry and his baby brother Charlie was auctioned off for $760,999. Following Sunday's sale, the Davies-Carr family said they would remove it from the site. This year, NFTs have made the front pages of the press, with more than $325 million in completed sales in May. But blockchain technology not only helps to verify authenticity and ownership of art, but also empowers artists to make a real contribution to their work.