Methods and systems for enabling off-chain transactions via a non-fungible token (NFT) marketplace are provided. A plurality of digital wallets associated with a service provider are provided with access to the NFT marketplace. The NFT marketplace corresponds to a decentralized blockchain associated with an entity that is different from the service provider. A request to perform a transaction involving a purchase, via the NFT marketplace, of an NFT associated with a specified source address is received from a first user of the service provider associated with a first identifier and a first digital wallet. Responsive to determining that the specified source address corresponds to a second user of the service provider associated with a second identifier and a second digital wallet, an identifier associated with the NFT is updated from the second identifier associated with the second user to the first identifier associated with the first user.

Methods and systems described herein may implement blockchain cryptocurrency transactions in a variety of environments. An online transaction processor may provide operations for digital asset recommendations and processing in one or more metaverses. The online transaction processor may determine digital assets available to a user in one or more digital wallets, as well as interactions by the user in one or more metaverses. Based on the digital assets, the transaction processor may determine blockchains preferred by the user. The transaction processor may intelligently select, using one or more machine learning models, a recommendation of a digital asset for the user based on the preferred blockchains and the interactions by the user in the metaverse(s). The recommendation may be for a digital asset that may be used in one or more of the metaverses and may be based on a proof of interest-based pricing model.

A system for bridging between centralized and decentralized systems such that an owner can access equity in their property and a purchaser can have a high degree of confidence in the property rights being purchased. The system includes an equity conversion computer having software executing thereon to intake property information and property conversion software executing thereon to convert the real property rights to be collateralized into tokens to be registered on blockchain (decentralized system) and on government computer systems (centralized systems). The software intakes the information, saves the information in a usable format and generates various documents in formats usable by the various system the equity conversion computer communicates with. The tokenized property rights can then be converted to a crypto currency by a purchaser desiring to purchase the property rights associated with the tokens.

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.

A system, method and apparatus for providing a global service for securely storing deposit instructions is described. The service provides payment processing services with a central location to translate payee information into a revocable d-token that represents the payee deposit instructions. A second service allows qualified banking institutions to convert the d-token into deposit instructions to effectuate a funds transfer.

A device configured to receive a service request for modifying a user account. The device is further configured to add an entry in a service request log and in an event log in response to receiving the first service request. The device is further configured to apply the modifications instructions from the service request to a current status of the user account in a status log and to modify the current status of the user account in the status log. The device is further configured to determine a second data control device is associated with the user account. The device is further configured to determine the first set of service instructions based on the updated first current status of the user account, to generate a second service request that comprises the first set of service instructions, and to send the second service request to the second network device.

Various embodiments include a method of facilitating identity information exchange in a cryptocurrency transaction. An information compliance computer system can receive a pending cryptocurrency transaction from a transmitter wallet service system for managing one or more user wallet accounts, each associated with one or more cryptographically verifiable addresses in a cryptocurrency exchange network. The information compliance computer system can identify a recipient wallet service system associated with a destination address indicated by the pending cryptocurrency transaction. Information compliance computer system can exchange identity information between the transmitter wallet service system and the recipient wallet service system. The information compliance computer system can publish the pending cryptocurrency transaction to the cryptocurrency exchange network for inclusion into a block chain of the cryptocurrency network.

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.

Systems and methods for expediting math-based currency (“MBC”) transactions are described. A financial institution facilitates the expedited MBC transactions. The expedited MBC transactions are achieved by providing merchants with a customer score for a customer that is paying for goods or services with MBC. The customer score is based at least in part on prior MBC transactions entered into by the customer. In some arrangements, the customer score is also based on balance information and transaction information associated with accounts maintained with the financial institution.

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.