Retail store services featuring unique, valuable, and luxury goods, namely, unique collectables and artwork, unique sports and entertainment memorabilia, unique previously-worn professional sports jerseys, unique celebrity designed and worn apparel and jewelry, limited edition luxury goods, all with or without corresponding blockchain-based digital tokens; Computerized on-line retail store services featuring unique, valuable, and luxury goods, namely, unique collectables and artwork, unique sports and entertainment memorabilia, unique previously-worn professional sports jerseys, unique celebrity designed and worn apparel and jewelry, limited edition luxury goods, all with or without corresponding blockchain-based digital tokens; Retail store services featuring unique, valuable, and luxury goods, namely, unique collectables and artwork, unique sports and entertainment memorabilia, unique previously-worn professional sports jerseys, unique celebrity designed and worn apparel and jewelry, limited edition luxury goods, all with or without corresponding blockchain-based digital tokens provided via downloadable mobile applications and wireless communications