A two-coin mechanism for maintaining a stable value of cryptographic coinage traded in a decentralized market exchange without requiring a reserve. A pegged cryptographic token and a variable-priced cryptographic token are both traded in the reserveless decentralized market exchange. The pegged cryptographic token and the variable-priced cryptographic token are value related based on a cryptographic exchange rate. Whenever a market transaction is processed (such as a buy or sell order), at least one of a destruction operation and a creation operation are performed. The destruction operation destroys at least one of the pegged cryptographic token and/or the variable-priced cryptographic token, while the creation operation creates new ones of the pegged cryptographic token and/or the variable-priced cryptographic token. The two-coin mechanism thus implements a decentralized and algorithmic monetary policy that removes and/or deposits cryptographic tokens to/from the reserveless decentralized market exchange to alter supply and to maintain stable coinage values.

A multi-coin mechanism for maintaining a stable value of cryptographic coinage traded in a decentralized market exchange without requiring a reserve. Multiple, pegged cryptographic tokens are traded in the reserveless decentralized market exchange. Each of the multiple, pegged cryptographic tokens may be pegged to a different asset (such as different currencies and/or commodities). The multiple, pegged cryptographic tokens are value related based on cryptographic exchange rates. Whenever a market transaction is processed (such as a buy or sell order), at least one of a destruction operation and a creation operation are performed. The destruction operation destroys at least one of the pegged cryptographic tokens, while the creation operation creates new ones of the pegged cryptographic tokens n. The multi-coin mechanism thus implements a decentralized and algorithmic monetary policy that removes and/or deposits cryptographic tokens to/from the reserveless decentralized market exchange to alter supply and to maintain stable coinage values.

Introduced here are computer programs and associated computer-implemented techniques for purchasing, selling, and/or transferring cryptocurrency to be disbursed as a reward for using a specialized payment card. The technology allows cardholders to receive cryptocurrency for completing transactions with specialized payment cards without requiring the card-issuing financial institution directly issue the cryptocurrency.

A consumer mobile software application is designed to entice new or infrequent visitors to visit a merchant. The application may permit the consumer to register and receive reward offers from the merchant, typically only when the consumer is at the merchant's place of business. The application may store each of the merchants added to the consumer's account and track the available rewards. The application may also store anywhere dollars, which may be usable across any of the participating merchants. The anywhere dollars may be converted into a crypto currency whose value may fluctuate based on the value of such currency. The merchants accepting such currency when redeemed by the consumer may opt to auto exchange the crypto currency to dollars on their account or may choose to retain the crypto currency itself.

The present invention provides a system that is configured to operate as a platform which enables users to online purchase from a digital insurance-based company one or more products, e.g., such as an insurance policy, and accordingly to create for each purchased product a corresponding amount of digital currency.

An electronic payment device and methods of its operation are disclosed. The payment device has a secure element for storing payment tokens, each associated with a payment card; an input interface that enables a user to select from among the payment cards; a display interface; and a processor. In response to a user selection of one of the payment cards by way of the input interface, a descriptor of the selected payment card is displayed by way of the display interface; and an unconsumed one of the payment tokens associated with the selected payment card is activated to prepare the payment card device for effecting payment using the selected payment card, thereby consuming the payment token. The payment device also includes a wireless communication interface for receiving additional payment tokens, thereby replenishing the payment tokens.

Methods and systems are disclosed for enabling the creation of substitute low-value token creation, comprising providing software content to a content delivery network wherein, when transmitted to a user browser, the software content is configured to enable the user browser to create a substitute low-value token if a token service is unavailable, wherein the content delivery network is configured to provide the software content to at least one user browser, and receiving the substitute low-value token from a merchant system, the substitute low-value token having been generated by the user browser in response to the user browser being unable to obtain a low-value token from the token service.

A system, method, and decentralized computer application may provide an efficient, distributed, immutable, and disintermediated infrastructure for offering and accepting wagers on sports, gambling, and public events using smart contracts, digital currency, digital currency wallets, and blockchains. One example method may comprise one or more of deploying a smart contract to a blockchain; displaying the smart contract's offered gambling odds related to real-world events in a front-end environment of a decentralized application; using the decentralized application to call functions of the smart contract to accept the offered gambling odds and to authorize transmissions of digital currency representing wagers; calculating commissions payable to the smart contract; retrieving data related to the subject matter of the wager using APIs and external oracle services; the smart contract determining which wagers were successful; and the smart contract transmitting digital currency to the digital wallets of users with winning wagers.

A device may obtain digital signature information relating to a quantity of a type of cryptocurrency, and receive transaction data relating to a credit account, associated with a user, after obtaining the digital signature information. The transaction data may include information identifying a transaction amount. The device may determine, after receiving the transaction data, an amount, of the type of cryptocurrency, that satisfies the transaction amount, perform, using the digital signature information, an action to conduct a sale of a portion of the quantity of the type of cryptocurrency based on determining the amount, and cause proceeds from the sale to be transferred to the credit account as payment for the transaction amount.

A system and method that relies upon smart contracts to facilitate cryptocurrency trades through a plurality of different exchanges. The system and method preferably operate on the blockchain.