9 Downloadable mobile application and software for registered users to obtain authentication of branded and collectible items, exchange authenticated items for block chain-based tokens, and buy and sell goods, collectible items, block chain-based tokens which may be redeemed for goods and collectibles, and crypto collectibles; Downloadable software allowing registered users to make and manage digital token-based transactions on a block chain; Downloadable software for registered users to buy and sell goods and collectibles