The field of this invention is a system and method for digital storage, digital exchange of personal and business valuables from any device, including but not limited to computer, mobile phone, tablet, the cloud or single standalone hardware, using a global unique digital ID, with specific designed app and chip to store and exchange directly in person or remotely.

In some embodiments, in connection with an API request to transact with an entity, a first conversion rate associated with a first time may be determined, where the first conversion rate is a current conversion rate for an on-chain asset at the first time; Based on a monitoring of a blockchain, a receipt of the on-chain asset at a second blockchain address from a first blockchain address associated with the user may be detected on the blockchain. In response to the detection, the on-chain asset may be converted to an off-chain asset at a second time associated with a second conversion rate, the second conversion rate being the current conversion rate for the on-chain asset at the second time. An amount of the off-chain asset may be transmitted to the entity, where the amount of the off-chain asset sent to the entity is based on the first conversion rate.

Verifying payloads for vending machines, wherein a consumer may purchase a product on their mobile computing device, ping a minted computing device associated with the vending machine, and the minted computing device authorizes the vending machine to dispense the object.

A software development kit (SDK) allow a user to be able purchase a gift card through an offer wall and, in return, the user can receive a reward in game currency, such as coins, diamonds, tokens or the like. Most mobile apps offer their users a way to purchase coins, diamonds, tokens, or the like, which is also known as an in-app purchase. The gift card offer wall can allow the game player to purchase a gift card from a choice of vendors, and, in return, obtain the desired game currency as a bonus. The system can include three elements—the SDK for various platforms, an electronic wallet application and servers that communicate with both the SDK and the wallet application. The SDK is something that the app publisher can add to their own mobile application that will launch the gift card offer wall for the user.

Systems and methods for facilitating a transaction between a first entity and a second entity using a digital currency are described. In some aspects, a computing node participates in a private distributed ledger for a financial institution and stores one or more transaction blocks representing transactions in a digital currency. The digital currency is issued by the financial institution and is fixed with respect to a fiat currency. The computing node is configured to receive a transaction for transferring an amount of digital currency from a first entity to a second entity, generate a new transaction block representing the transaction, transmit the new transaction block to other computing nodes participating in the private distributed ledger, receive an indication of validity of the new transaction block, and insert the new transaction block into the private distributed ledger.

The application describes generation of a data structure that enables comparison of any diamond to any other diamond. The data structure is generated via a sampling process and a computer system for acquisition of diamonds of a valid statistical sample having a predefined sample size. The process comprises tabulating the frequencies that diamonds of various grade combinations are available in an overall population of diamonds, then using a bidding process described herein to acquire a valid statistical sample of diamonds. The data for the sample of diamonds are then inputted into a Linear Programming and Mixed-Integer optimizer configured to sort all diamonds of the sample into sets with a median that is a minimal distance from the median on a scarcity basis, subject to various constraints, such as the number of diamonds in each set and a minimum total carat weight.

A node that is part of a network of nodes with access to a distributed ledger may receive a transaction request to perform one or more operations associated with the distributed ledger, wherein the one or more operations include causing a record of a transaction to be stored using the distributed ledger. The node may determine, based on credential information associated with the transaction request, whether to allow the one or more operations to be performed. The node may perform the one or more operations based on determining to allow the one or more operations to be performed. The one or more operations may include adding the record of the transaction to the distributed ledger. At least a subset of the content may be included in the record. The node may cause one or more other nodes, of the network of nodes, to have access to the distributed ledger.

Provided herein is a computer-implemented method for provisioning a token to an appliance. The method includes registering an original account identifier to an appliance, wherein the original account identifier is not associated with any user when registered, associating a device token to the original account identifier, wherein the device token is stored by the appliance, associating a user account identifier to at least one of the device token and the original account identifier, receiving, from the appliance, a transaction request for a transaction, the transaction request including the device token, identifying the user account identifier based on the device token, determining that the transaction is authorized based at least partially on the user account identifier and the original account identifier registered to the at least one appliance, and in response to determining that the transaction is authorized, processing the transaction. A system and appliance are also disclosed.

A crypto ETP is administered by a portfolio modeling computer/(PMC), a fund administration computer/(FAC), an order taking platform computer/(OTP), a custodian computer/(CC), and a paying agent settlement computer/(PASC). The PMC defines the ETP and captures data for a cryptocurrency index. The CC tracks Underlying Assets held by the ETP, and sends the data to the FAC, which calculates the NAV of the Underlying Assets to generate a Portfolio Composite File/(PCF) sent to the OTP. The OTP receives and validates/confirms with the CC, orders for creations and redemptions of the ETP from Authorized Parties/(APs), in exchange for the Underlying Assets and/or cryptocurrency. The PASC provides settlement on the Exchange in cryptocurrency by: receiving confirmation from the CC of transfer of underlyings, ETPs or cryptocurrency from the APs to a blockchain wallet associated with the PCM; and issuing units of the ETPs, underlyings or cryptocurrency to the APs.

The present disclosure is directed to security settlement in financial markets and cryptographic currencies. Particular portions of the present disclosure are directed to a cryptographic currency protocol and to a cryptographic currency that includes a positional item. The cryptographic currency protocol supports a virtual wallet that, in various embodiments, is a security and cash account for storing and managing the cryptographic currency. Opening a transaction via the virtual wallet to transfer the cryptographic currency is a strong guarantee of the availability of funds in the virtual wallet because, e.g., funds are not transacted unless the commit phase is successful.