Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for data synchronization. One of the methods includes that a first terminal device establishes a data channel to a specified carrier through near field communication. The first terminal device obtains an account identifier of a first account and first streaming data corresponding to the first account through the data channel, where the account identifier of the first account and the first streaming data are stored in the specified carrier. The first terminal device determines second streaming data corresponding to a second account associated with the first account, and performs data synchronization between the first account and the second account based on the first streaming data and the second streaming data.

A content delivery platform may deliver program content segments and advertising content segments to multiple user devices. The content delivery platform may deliver a program content segment to a primary user device of a user for presentation on the primary user device. The content delivery platform may retrieve an advertising content segment from an advertising content store for presentation. The advertising content segment is provided by an advertiser that is sponsoring the presentation of the program content segment on the primary user device. The content delivery platform may send the advertising content segment to a secondary user device of the user for presentation at the secondary user device.

Systems and methods for managing cryptocurrency systems.

A method for signing a signature for a private key for a cryptocurrency signature wallet device includes eight stages. The first stage includes accepting data items and creating and transmitting an unsigned transaction. The second stage includes storing the unsigned transaction. The third stage includes entering wait for notification status. The fourth stage includes sending signature request notification. The fifth stage includes searching for unsigned transactions and sending a selected unsigned transaction. The sixth stage includes receiving and signing a signature request and sending back a signature. The seventh stage includes outputting and reading portable data, and signing and transferring a signature. The eighth stage includes writing the signature in the unsigned transaction, summing up a number of signatures written in the signature fields, and transforming the signed transaction into the cryptocurrency transaction or returning system flow control to the third stage to loop.

A data aggregation and process automation (DAPA) system is disclosed. The DAPA system includes an authentication module, a monitoring module, an intelligent automation module, and a transformation module. The authentication module is configured to initiate authenticated communication with a plurality of servers, and includes an authentication storage having a plurality of authentication credentials and routing information. The monitoring module is configured to monitor a first server for a first change event and monitor a second server for a second change event. The first change event results in the receipt of a first data object and the second change event results in the receipt of a second data object. The intelligent automation module is configured to identify the second server, request a service, and submit an update data object to the first server. The transformation module is configured to transform data objects from one format into another.

A method for generating codes that correspond to accounts associated with a digital wallet is provided. The method includes obtaining a primary account identifier from a user; receiving a request from the user to generate a secondary account; generating the secondary account; generating a code representing the secondary account; associating the code with the primary account identifier; and transmitting information that indicates the association between the code and the primary account identifier to a payment processor. The method may also include the use of pooled accounts through an aggregation of secondary accounts from different users.

Systems and methods are provided to mitigate flaring of natural gas. A natural gas processing system may process raw natural gas into a fuel gas stream that may be used to power any number of on-site power generation modules. In turn, the power generation modules may convert the fuel gas stream into an electrical output, which may be employed to power any number of distributed computing units housed within one or more mobile data centers. In certain embodiments, the distributed computing units may be adapted to mine cryptocurrency or perform other distributed computing tasks to generate revenue.

A method of social key recovery for a first communication device supporting blockchain technology with asymmetric cryptographic algorithm is disclosed. The method comprises transmitting a device identity of the first communication to a second communication on the blockchain, performing a verification operation with the second communication device, receiving a message including a verification code of the first communication device and a public key of the second communication device, from the second communication device, wherein the first message is encrypted with a public key of the first communication device, decrypting the message with a private key of the first communication device, to obtain the public key of the second communication device, and transmitting seed phrases encrypted with the public key of the second communication device for restoring a crypto wallet on the blockchain, to the second communication device.

A system and method for achieving financial transactions utilizing blockchain transfers wherein a microprocessor is coupled to at least one network adapter and is operable to access memory and execute computer-readable instructions to receive a transfer of a cryptocurrency amount into a first account; define a value to that cryptocurrency at that time and peg that value to the cryptocurrency until a subsequent financial transaction wherein at least a portion of the cryptocurrency is used to satisfy a transaction amount based upon a pegged value rather than a then current value. A hedging mechanism can be implemented to mitigate volatility of the incoming currency, such as a cryptocurrency.

The disclosed technology is generally directed to blockchain technology. In one example of the technology, a modified block is provided in response to at least an edit transaction that indicates a transaction in an original block in a blockchain. The modified block includes: transactions of the original block except the indicated transaction, a hash of the indicated transaction, and a header that includes a link to a hash of a block that precedes the original block. A new block is provided. The new block includes a reference associated with the edit transaction, and that the reference may include a link to the modified block. The original block may be caused to be deleted.