Disclosed are the methods and systems for transferring value from a first account to a second account via a consumer device. The methods may be consumer or merchant driven and may involve transferring value to peers, oneself, or a third party account holder with or without the creation of a user account. Based on information input by a user, various financial systems interact in a manner that results in creation of an escrow account and effectuates transfer of value from a funding account through that escrow account to a receiving account. Such novel methods allow for previously unavailable transfers of value.

A balance and control system may write a data file transfer confirmation from a transmitter system to a blockchain in response to the transmitter system transmitting a data file to a receiver system with the confirmation including a transmitter system address, a receiver system address, and a first hash of the data file. The system may also write a data file transfer acknowledgement from a receiver system to the blockchain with the acknowledgement including the transmitter system address, the receiver system address, and a second hash of the data file. The blockchain may execute a smart contract to compare the first hash of the data file to the second hash of the data file to identify an out-of-balance file transfer event. A monitoring device of the B&C system may read the out-of-balance file transfer event from the blockchain.

Systems and methods are disclosed for automating digital asset transfers based on historical transactions. In one implementation, a notification corresponding to a first transaction or operation associated with a first entity is received. Based on the notification, a second transaction or operation is initiated with respect to one or more digital tokens. One or more digital tokens are received in response to the second transaction. At least one of the one or more digital tokens, as secured via one or more cryptographic keys, is stored in a wallet associated with the first entity.

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for avoiding double-spending problem in read-write set-model-based blockchain technology. One of the methods includes receiving instructions to execute two or more blockchain transactions on a piece of data, where all blockchain transactions of the two or more blockchain transactions modify a value of the piece of data, and for each blockchain transaction from the two or more blockchain transactions, pre-executing a smart contract associated with the blockchain transaction to generate a special instruction indicating the blockchain transaction, where the special instruction is used to validate that a current value of the piece of data supports the blockchain transaction when executing the smart contract to write the blockchain transaction to a blockchain.

Aspects of the disclosure relate to a system that provides enhanced security of information transmitted by connected devices. The system may be used to request resources from members of a donee's virtual group. Donated funds or line of credit may be loaded to the donee's digital wallet with no link to any of the donee's personal accounts. The request for resources may utilize secure correspondence between the donee and the prospective donors. The secure correspondence may be locked and prevented from being forwarded or captured via a screenshot to ensure confidentiality. If an attempt is made to forward or copy the secure correspondence, the secure correspondence may be deleted. Donated funds/line of credit may be allocated for specific use, and may not be owned by the donee until used.

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.

Systems and methods for active application of secondary transaction instrument tokens in transaction processing systems are provided. A transaction processing server receives a transaction request identifying a request to authorize a transaction using a first transaction instrument and a first token processing engine issues the transaction request with a first transactable token associated with the first transaction instrument for use by a first remote entity to authorize the first transaction instrument. The transaction processing server receives a transaction request failed message and actively routes a non-transactable token from the first token processing engine to a second token processing engine. The second token processing engine reissues the transaction request with a second transactable token associated with the second transaction instrument for use by a second remote entity to authorize the second transaction instrument and receives an indication that the transaction completed successfully using the second transactable token.

A method includes accessing a swap service, by a consumer device, to facilitate transferring value from a first account of a user to a second account of a second user. The method further includes obtaining fee information regarding a fee amount associated with the facilitating transferring value. The method further includes generating virtual fee selection buttons for display on a touch screen of the consumer device, the buttons include a fee addition button, a split fee button allows the user to split the fee amount with the second user, and a fee deduction button. The method further includes receiving a selection by the user via the virtual fee selection buttons that indicates (a) whether the user or the second user is charged the fee amount, and (b) a proportion of the fee amount that each of the user and the second user is charged for the facilitating transferring value.

Methods for secure transactions between gaming machines and portable devices are described. A logic device, separate from a master gaming controller on the gaming machine and placed in the gaming machine, may be operable to authenticate a portable device, such as a smart card, and authorize transactions involving transfers of indicia of credit between the portable device and the gaming machine. The logic device may be operable to send authentication information relating to the portable device to a remote host where a value amount of transactions involving the portable device authorized by the logic device may be higher when the logic device and the remote host authenticate the portable device as opposed to when the portable device is only authenticated by the logic device.

Embodiments of the application provide a method, apparatus, and electronic device for implementing blockchain-based transactions. The method comprises: determining a transaction amount to be remitted from a remitter's blockchain account into a receiver's blockchain account, wherein a commitment of the remitter's balance is recorded with the remitter's blockchain account in a blockchain, a commitment of the receiver's balance is recorded with the receiver's blockchain account in the blockchain; obtaining a commitment of the transaction amount by using the homomorphic encryption algorithm according to the transaction amount; and submitting to the blockchain a transaction comprising information of the remitter's and the receiver's blockchain accounts, and the commitment of the transaction amount, for the commitment of the transaction amount to be deducted from the commitment of the remitter's balance and the commitment of the transaction amount to be added to the commitment of the receiver's balance.