An example embodiment performed by a scoped software application executable on a computing device of a computational instance within a trust group of computational instances of a remote network management platform may involve obtaining a representation of one or more transactions involving the computational instance. The embodiment may also involve encrypting the representation, using a pre-shared key to which at least some computational instances within the trust group have access. The embodiment may also involve placing the encrypted representation into a data block that also includes: (i) a first output generated by applying a hash function to content from a previous data block of a blockchain-based transaction ledger, and (ii) a second output generated by applying the hash function to the encrypted representation and the first output. The embodiment may also involve distributing copies of the data block to blockchain-based transaction ledgers within each computational instance of the trust group.

Resource exchange platform for integrating and facilitating direct resource exchanges and resource tracking between multiple organizations. The platform may establish an exchange program directly between organizations to identify, trade, and settle the transfer of physical resources physically and/or electronically. The resource exchange platform provides a more efficient exchange of physical resources, more secure trackable resource exchanges, and more agency insight into resource exchanges in order to identify potential interactions involving misappropriated resources.

A multi-function transaction card may include a card body having dimensions that are in accordance with a standard for transaction cards, an output device on the card body, and a secure element within the card body. The multi-function transaction card may pair, via a wireless connection, the multi-function transaction card with a terminal. The multi-function transaction card may receive, from the terminal, information associated with a transaction. The multi-function transaction card may generate, based on the information associated with the transaction, and using a cryptographic key, an authorization request cryptogram (ARQC), wherein the cryptographic key is stored in the secure element. The multi-function transaction card may generate, based on the ARQC, a machine-readable code. The multi-function transaction card may display, using the output device, the machine-readable code.

An admission system comprising a mobile admission application in communication with a venue admission system. The mobile admission application runs on a mobile communication device under the control of an individual and operates to generate and send an admission request to the venue admission system having the identity of the member. The venue admission system operates to receive the admission request message and to verify the membership of the individual sending the request message. Provided the individual is verified to be a member of the venue, the venue admission system encrypts the member identity and sends the encrypted identity to the mobile admission application. Prior to being admitted to the venue, the mobile admission application generates and send an admission message with the encrypted member identity that is received by the venue admission system.

Described herein is a customer-initiated payment system that includes an electronic device of a customer, the electronic device including at least one processor configured to: (i) process, in response to input from the customer, a digital image of a machine-readable optical code of a merchant to determine corresponding merchant information and transaction information encoded in the machine-readable optical code; (ii) access a digital wallet of the customer's electronic device to determine a token that identifies a financial transaction account of the customer; (iii) process the determined information and token to generate a transaction request message representing an identifier of the merchant, a transaction amount, and the token of the customer; and (iv) send the transaction request message to a token server to request a financial transaction involving payment of the transaction amount from the financial transaction account of the customer to a financial transaction account of the merchant.

Methods, systems, apparatus, and computer program products related to a digital business management system for business transactions are provided. In an example embodiment, the digital business management system includes receiving a transaction data object generated as a part of a transaction event executed via an external commerce channel to be posted to a ledger, wherein the transaction data object comprises one or more metadata tags classifying the transaction event. The system further comprises generating an immutable ledger entry, parsing the transaction data object to identify the one or more metadata tags for storage in association with the transaction event, identifying a match between the one or more metadata tags received from the external commerce channel and one or more master metadata tags stored in the ledger and associated with a data object profile, and updating the data object profile by associating the immutable ledger entry with the data object profile.

Systems and methods for anonymous cryptocurrency transactions are disclosed. A method may include: receiving, from the electronic device associated with a sender of a cryptocurrency transaction, a zero-knowledge statement comprising a shuffled and anonymized list of participants comprising the sender, a receiver of the cryptocurrency transaction, and a plurality of decoy participants, a transfer amount, and a remaining balance, and a secret witness, wherein each participant is associated with an index; generating one-out-of-many proofs for the sender and the receiver based on their associated indices; generating a Basic Zether proof for the transfer amount and the remaining balance; conducting many-out-of-many proofs with parameters chosen for an anonymous payment setting; and constructing a zero-knowledge proof for the zero-knowledge statement. The sender sends an ordered list of the participants and the zero-knowledge proof to a verifier using the FiatShamir transform, and the verifier verifies the zero-knowledge proof.

A method for selling a cryptocurrency via a consumer-operated kiosk is provided. In some embodiments, the method: displays to a user, via a user interface, one or more options to purchase one or more cryptocurrencies; receives from the user, via the user interface, a selection of one of the cryptocurrencies; obtains a cryptocurrency exchange rate from a cryptocurrency exchange; presents the exchange rate to the user via the user interface; receives from the user payment for the selected cryptocurrency via a bill acceptor; purchases the selected cryptocurrency from the cryptocurrency exchange in an amount based on a value of the received payment and the exchange rate; and displays to the user, via the user interface, a receipt having a redemption code and a personal identification number (PIN), wherein both the redemption code and the PIN are necessary to obtain the selected cryptocurrency.

The present disclosure relates to systems and methods for hybrid synchronization in virtual distributed ledger networks. In one embodiment, a processor-implemented method is disclosed, comprising receiving, at the first virtual machine or container associated with a master ledger, a transaction request comprising transaction information; updating the master ledger with the transaction information; upon determining to perform a synchronous update of the slave ledgers, updating the slave ledgers based on the updated master ledger with the transaction information using a consensus protocol; and upon determining to perform an asynchronous update of the slave ledgers, communicating by the first virtual machine or container, with one or more additional virtual machines or containers associated with the slave ledgers, an update of the slave ledgers at one or more times determined based on a delay tolerance associated with each of the one or more additional virtual machines or containers.

Embodiments of the invention relate to systems and methods for provisioning and using a multi-purpose device. The device contains information regarding a plurality of memberships. The device contains one or more membership certificate chains, comprising multiple certificates, wherein a membership provider certificate is signed by a private key associated with a membership root certificate authority, and wherein a member certificate is signed by a private key associated with the membership provider certificate. The member certificate includes member attributes regarding the user, such as member benefit information. The device also includes a payment certificate chain, comprising multiple certificates, wherein a payment provider certificate is signed by a private key associated with a payment root certificate authority, and wherein a payment certificate is signed by a private key associated with the payment provider certificate. The payment certificate includes payment attributes regarding the user, such as a payment account.