Data storage by means of blockchains; Platform as a service (PaaS) featuring computer software platforms for the creation and trade of digital collectibles in the fields of sports; Blockchains as a service (BaaS), namely, providing temporary use of on-line non-downloadable software for the creation, trade, and tracking of digital collectibles in the field of sports on a blockchain; authentication of data in the field of digital collectibles in the field of sports using blockchain technology