Systems, methods, apparatus, computer program code and means are provided to operate a first device to receive a coin having value from a second device while offline.

Systems and methods for predicting and making payments via preferred payment methods include determining an amount that a payer owes a payee, predicting a preferred funds transfer method of the payee, providing a notification to a payee device associated with the payee, receiving a user input from the payee device indicating an agreement with the preferred funds transfer method, and initiating, in response to the user input, a funds transfer from a source account of the payer to the payee. Predicting a preferred funds transfer method of the payee can include performing data analytics on at least one data source associated with the payee, such as a smart digital wallet, a social network account, a smart appliance, a financial account, a financial transaction, a shopping list, and a geographic location, etc. In some embodiments, predicting a preferred funds transfer method of the payee includes rerouting the payment to downstream payees.

A first blockchain transaction is generated where the first blockchain transaction comprises a redeem script, which comprises a cryptographic public key associated with an initiating party and metadata which includes a hash of an exchange-related document, a redeem address, and an amount of digital currency. A second blockchain transaction to spend the digital currency to the redeem address is generated. A response associated with a responding party and comprising a reference to the exchange-related document is generated. The response is stored in a computer-based repository. A further blockchain transaction is generated, the further blockchain transaction comprising a redeem script, which comprises a cryptographic public key associated with the responding party and metadata which includes a hash of the response and a reference to its location in the repository, and an amount of digital currency.

Systems and methods for providing a resource-based distributed public crypto currency blockchain include system provider device(s) that receive first crypto currency transaction information for a first crypto currency transaction that is configured to provide for the transfer of a crypto currency to a payee via a primary distributed public crypto currency blockchain maintained by computing devices. The system provider device(s) identify resource information provided by each computing device and use the resource information to select a subset of the computing devices for processing the first crypto currency transaction. The system provider device(s) then broadcast, via the network to each computing device, the first crypto currency transaction information for the first crypto currency transaction in order to cause a first computing device to process the first crypto currency transaction as part of a first block that is added to the primary distributed public crypto currency blockchain.

The present invention enables a cryptocurrency for which the secret information needed for remittance is managed outside of an exchange to be evacuated without excessively increasing a user’s burden. A apparatus 110, in accordance with remittance instructions (S301), generates remittance transaction data T and also generates evacuation transaction data E for remitting the remainder derived by subtracting an instructed amount of remittance from the amount remittable using secret information (S302). Next, the apparatus 110 transmits the hash value of the transaction data to an apparatus 100 (S303). The apparatus 100 signs the hash value and transmits the signature to the apparatus 110 (S304). Next, the apparatus 110 generates signed remittance transaction data T′ and signed evacuation transaction data E′ (S305). The data T′ is transmitted to a blockchain network 130 (S306), and the data E′ is transmitted to a server 120 as preparation for evacuation (S307) .

A method (600) for handling a digital payment between a payer (P1) and a payee (P2) is presented. The payer and payee communication devices (PD1, PD2) uses (610) short-range data communication (SRDC) when the devices are in proximity of each other to agree upon a digital payment (DP) without requiring long-range data communication with a remote digital payment settlement service (DPSS) at that stage. Independently of the other device, the payer communication device (PD1) or the payee communication device (PD2) subsequently communicates (630) buffered digital payment information (DPI) to the remote digital payment settlement service (DPSS) by long-range data communication (LRDC1, 15 LRDC2). The remote digital payment settlement service (DPSS) causes settlement (640) of the digital payment (DP) as indicated by the digital payment information (DPI) received by long-range data communication (LRDC1, LRDC2) from one of the payer communi-cation device and the payee communication device (PD1, PD2).

Devices can be configured to implement distributed ledgers capable of immutably recording a first set of data and a second set of data of an item, wherein the second set of data is made available by satisfaction of a condition. Such devices can include network interfaces, memory and processors. The processors can be configured to obtain a conditional item. The conditional item includes a first set of data that is available. The conditional item can further include a second set of data that is unavailable. The processor can be further configured to determine whether a condition is satisfied, and when the condition is satisfied perform an evolution to the conditional item.

Systems and methods for managing a digital token that represents a real-world item. The systems and methods provide a live video stream to a plurality of user devices, access an interface of an integration system of a tokenization platform that is configured to generate digital tokens, receive an electronic in-stream advertisement from the integration system, present the electronic in-stream advertisement in the live stream, facilitate a transaction by the user for the advertised real-world item and, in response to the user successfully transacting for the advertised real-world item, transmit a request to the integration system requesting that the tokenization platform update ownership data of the advertised digital token.

Systems and methods for tokenizing real-world items for use in digital commerce are disclosed. In some embodiments, a recognized activity in a workflow for a set of digital tokens of a digital token transaction system triggers a workflow associated with the recognized activity in a virtual reality system.

A cross-chain transaction method based on hash locking and a sidechain technology is provided. The cross-chain transaction method comprises the following steps: establishing a hash-locking-based atomic exchange data transmission mechanism for a first terminal and a second terminal; establishing a cross-chain data transfer mechanism based on an SPV pegging mode; and realizing, by the first terminal and the second terminal, a hash-locking-based atomic exchange data transmission under a supervision state of the SPV pegging mode. The cross-chain transaction method, by utilizing the sidechain technology, solves the defect of the hash locking technology that only asset exchange can be realized but asset transfer cannot be realized, and thus the cross-chain asset transfer can be realized by utilizing the hash locking technology without additionally adding a sidechain or a relay chain.