Embodiments of the disclosure are directed to methods and systems for enabling generation and management of a secondary account. The secondary account may be generated in relation to a primary account, such that at least a portion of a transaction conducted using the secondary account may be charged to the primary account. In some embodiments, the secondary account may be associated with a number of protocols to be applied to a transaction. When a transaction is initiated using the secondary account, a service provider may consult an itinerary to dynamically generate a set of protocols which is relevant to the transaction based on a time period during which the transaction is initiated. In some embodiments, portions of the transaction may be split up and transmitted to different authorization entities for authorization.

A computer-implemented method includes: determining assets held by a remitter, the assets to be spent in a remittance transaction between the remitter and one or more payees, in which each asset corresponds to a respective asset identifier, a respective asset amount, and a respective asset commitment value; determining a remitter pseudo public key and a remitter pseudo private key; determining a cover party pseudo public key, in which the cover party pseudo public key is obtained based on asset commitment values of assets held by the cover party; and generating a linkable ring signature for the remittance transaction.

An E-wallet transfer payment method includes: connecting a first PKI smart card to a second PKI smart card wirelessly; the first PKI smart card receiving a transfer instruction input by a first user, wherein the transfer instruction comprises a transfer amount to be transferred to a payee account; the second PKI smart card sending the payee account information to the first PKI smart card; the first PKI smart card generating transaction information according to the transfer instruction, and displaying the transaction information; the first PKI smart card receiving a confirmation instruction input by the first user according to the displayed transaction information; the first PKI smart card deducting a corresponding amount in a payment account according to the transfer amount, generating a signature information and sending the signature information to the second PKI smart card; adding the corresponding amount to the payee account according to the signature information.

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.

Described herein are chargeback settlement processing systems and methods. A chargeback settlement computing device is configured to store a dispute table including a dispute record associated with a first chargeback request associated with a first chargeback transaction. The dispute record includes an account identifier, a chargeback transaction amount, and a unique chargeback identifier. The computing device is also configured to receive (i) a clearing detail record including a unique chargeback reference number associated with clearing/settlement of the chargeback transaction and chargeback transaction data, and (ii) a chargeback response including the chargeback identifier, the chargeback reference number, and chargeback transaction data. The computing device is configured to determine whether the dispute record, the clearing detail record, and the chargeback response match, and generate an individual reconciliation record using data from the dispute record, the clearing detail record, and/or the chargeback response.

Systems and methods disclosed herein are directed to a scalable and advanced analytics computing platform for distributed ledger data for integrating an entity's legacy systems, distributed ledger systems, and crypto-asset transactions, as well as related metadata. The systems and methods further relate to a custody adapter implementation that enables interactions across multiple custody technology providers, sub-custody providers, and internal custody solutions.

Systems and methods disclosed herein are directed to a scalable and advanced analytics computing platform for distributed ledger data for integrating an entity's legacy systems, distributed ledger systems, and crypto-asset transactions, as well as related metadata.

A system has a datastore including a pro-rata digital wallet associated with a cardholder. The pro-rata digital wallet includes two or more payment card accounts. The system includes a processor programmed to receive an authorization request message from a point-of-sale terminal. The authorization request includes an identification number from a transaction device presented by the cardholder. The processor is programmed to determine whether the identification number corresponds to one of the payment card accounts associated with the pro-rata digital wallet and, if so, identify each of the payment card accounts associated with the pro-rata digital wallet. The processor is programmed to determine a pro-rata payment amount for each of the payment card accounts associated with the pro-rata digital wallet. Each pro-rata payment is based on an available balance of each of the payment card accounts relative to a total available balance for a combination of each of the payment card.

A computer-implemented method including storing assets from an external entity in a first wallet of a payment service; training a machine-learning model using transaction data, user data, and/or rewards data; determining, using the machine-learning model, reward offers personalized for a user; activating a reward offer; receiving a request to process payment for a user's payment transaction; determining that a reward configuration is applicable; determining an amount of stored assets to assign to the user and assigning the assets to a second wallet of the user, wherein assigning the amount comprises: updating, using an internal ledger, the first wallet to indicate that a portion of the stored assets is owned by the user; and updating the second wallet to indicate ownership of the amount of the asset, wherein the updating of the first wallet and the second wallet is performed without accessing the external entity when updating.

A processor having hardware is provided. The processor creates, when the processor receives a creation request of group payment means for making a payment by electronic money using a first terminal and a second terminal that are associated with an organizer and a participant of a group, respectively, the group payment means in a wallet in which a plurality of payment means is registrable. The processor outputs a deposit request to a first server designated in the creation request, based on registration information of the group payment means acquired from the second terminal, to a second server designated in the registration information.