Digital platform for trading, sending, receiving, accepting and transmitting currency, digital currency, cryptocurrencies, blockchain tokens, and other digital assets, and managing exchange transactions; self-custody infrastructure in the nature of digital wallets for storing and transferring currency, digital currency, cryptocurrencies, blockchain tokens and other digital assets; creation, development, and download of digital infrastructure software in the form of, or for interacting with, smart contracts for facilitating the trading of currencies, digital currency, cryptocurrencies, blockchain tokens and other digital assets on a mobile, self-custody banking platform; downloadable software in the nature of, or for accessing, blockchain-based financial services; downloadable computer software for brokerage and trading of investments, securities, stocks, bonds, capital investments, commodities and equities; downloadable computer software for banking and cash management; downloadable computer software for providing information in the fields of cryptocurrencies, blockchain tokens and other digital assets, finance, securities trading, investments, securities brokerage, banking, and cash management; downloadable software for processing electronic payments; and downloadable authentication software for controlling access to and communications with computers and computer networks