A computer-implemented method to participate in a token transfer process for transferring a first quantity of token from a sender node to a recipient node using a blockchain is disclosed. The token transfer process includes a plurality of participating nodes and execution of a set of indirect token transactions between multiple pairs of the participating nodes. The method is implemented at a participating node performing steps of obtaining a subset of the indirect token transactions for which the participating node is either an input node or an output node, collaborating with a respective second participating node included in each indirect token transaction of the subset to generate a commitment channel for the indirect token transaction between the participating node and a second participating node, and collaborating with all other participating nodes in executing the indirect token transactions of the subset using the generated commitment channels.

The present disclosure relates generally to a system that tracks the funding source of an amount of funds as the funds are transferred between various accounts or balances of various components of the system.

A composite cryptographic data structure is described, and corresponding methods, systems, and computer readable media. The composite cryptographic data structure is instantiated based on an underlying set of cryptographic tokens (e.g., blockchain/distributed ledger tokens) that, in some embodiments, are transferrable through on-chain transactions established on one or more distributed ledger networks. Identity validation, in some embodiments, may occur at one of composite cryptographic data structure instantiation or composite cryptographic data structure redemption, or both, through the use of a whitelist or a blacklist data structure.

Systems and methods for P2P transaction functionality include payment collection from a third party source. A system includes at least one processor and a storage medium storing instructions that, when executed by the one or more processors, cause the at least one processor to perform operations including receiving transaction information from a vendor where a card was used and analyzing the transaction information. The operations also include sending one or more requests for repayment to one or more P2P service systems, receiving repayment information, regarding one or more repayments, from the one or more P2P service systems and, based on the repayment information, applying the one or more repayments to the transaction performed on the card.

A method, computer system, and a computer program product for managing digital currency is provided. The present invention may include initializing a digital wallet. The present invention may include receiving one or more digital currencies. The present invention may include performing one or more transactions using the one or more digital currencies, wherein each of the one or more transactions has a hash value recorded on a local ledger maintained on the digital wallet. The present invention may include broadcasting the local ledger to a shared ledger maintained by a fund source. The present invention may include synchronizing the digital wallet with the found source by releasing a value held in suspense based on a total value of the one or more digital currencies remaining on the digital wallet.

Systems and methods for providing a rewards payment form linked directly to a rewards account are described. The system can determine, based on a comparison of a location of a mobile device with a merchant location of a merchant, that the mobile device is at the merchant location. The system can determine that the merchant participates in a rewards promotion and can receive a transaction request associated with a rewards account and a cryptogram. The system can authenticate the transaction request by decrypting the cryptogram and can activate the rewards promotion based on the determination that the mobile device is at the merchant location and the determination that the merchant participates in the rewards promotion.

There is provided a processor(s) executing a blockchain smart contract, for: managing a primary reserve of primary tokens and a secondary reserve of secondary tokens, receiving a transaction request, obtaining an external price of the primary token, compute an updated value of the primary reserve according to the external price, in response to the updated total value of primary reserve being unequal to an initial staked value of the primary reserve, adjust primary and secondary dynamic reserve weights, wherein a total value computed by a function of the primary reserve after being increased or decreased by a target amount of primary tokens and using the adjusted primary and secondary dynamic reserve weights, is equal to the initial staked value of the primary reserve, and the total value of the primary reserve is maintained at a predefined ratio to a total value of the secondary reserve, and executing the transaction request.

A method for digital coin issuance may include: receiving, at a ledger interoperability service and from a gateway communication service, a request to deposit a digital coin balance for an amount of funds for a client to a client digital coin wallet on a distributed ledger; receiving, at an omnibus account, a transfer of the funds from a client demand deposit account for the client; identifying, by the ledger interoperability service, an address for the client digital coin wallet on the distributed ledger using an address book; submitting, by the ledger interoperability service, a request to the gateway communication service to issue the digital coin balance to the client digital coin wallet and to generate postings for the digital coin balance for the distributed ledger; and receiving, by the ledger interoperability service, confirmation from gateway communication service of writing the digital coin balance to the client digital coin wallet.

There are provided systems and methods for user interfaces for account statement assignment. A user may engage in transactions over a time period, such as purchases of goods, services, or other items using a physical payment card associated with an online transaction processor. A statement may be issued at the completion of the time period, where the statement may include account information requiring a payment by the user, such as a statement balance. The user may request for another user to provide a payment for all or a portion of the balance using one or more user interfaces of a peer-to-peer payment and social networking platform. Thereafter, a request may be provided to the other user, which may request the payment. The other user may process the payment, which may be used to provide funds directly to the statement balance.

In one embodiment, techniques include a method of handling transactions for a pack of security assets. The method includes identifying a subset of a set of security assets for inclusion in the pack of security assets to be recommended to a user based on an analysis of one or more criteria associated with the user. The method includes causing an electronic device to display a user interface to facilitate a purchase of the pack. The method includes, in response to determining a user selection corresponding to a request to purchase the pack and a specified value of currency: calculating a number of base units of each security asset based on the existing value of a base unit of each security asset, including a fractional portion of the base unit; and assigning, for each security asset, ownership of the calculated number of base units of each security asset to the user.