Systems and methods for secure and efficient bill capture, analysis, and execution are provided. A method may include capturing, via a camera embedded in a smart card, an image of a bill. The bill may include a plurality of text fields. The method may include processing the text fields via a microprocessor embedded in the smart card. The method may include determining, based at least in part on the processing of the text fields, a balance amount and a payment recipient associated with the bill. The method may also include executing a payment for the balance amount from an account associated with a user of the smart card to an account associated with the payment recipient. The executing may be performed via a wireless communication element embedded in the smart card which may be configured to provide wireless communication between the smart card and a payment gateway.

A method for optimizing blockchain storage size through use of relative values includes: receiving, by a blockchain node in a blockchain network that manages a blockchain, a plurality of blockchain data values, each including unspent transaction outputs, at least one destination address, and, for each destination address, an original currency amount; identifying a base value; modifying the original currency amount included in each blockchain data value to be a relative currency amount based on a difference between the identified base value and the original currency amount; generating a new block, the new block including a block header and the modified plurality of blockchain data values; and transmitting the generated new block to a plurality of additional nodes in the blockchain network.

The invention provides methods, systems and computer program products for implementing pre-authorized payment transactions. In an embodiment, the invention comprises at a point-of-sale (POS) terminal (i) receiving a payment initiation request, (ii) receiving payment account information associated with a payment account associated with a payor, and (iii) receiving a first input identifying the payment transaction as a payment transaction that has been pre-authorized, (iv) responsive to receiving the first input identifying the payment transaction as a payment transaction that has been pre-authorized, generating a transaction payment request based on a pre-defined request message format, wherein a personal identification number (PIN) data element within the transaction payment request is populated independent of any PIN value input at the POS terminal, and (v) routing the generated transaction payment request to a transaction authorization server that is communicably coupled to the pre-authorized transaction database.

A data processing method and apparatus based on a blockchain network, and a computer device. The method includes acquiring a transaction request, the transaction request carrying transaction data and reference signature data corresponding to the transaction data; validating the transaction data and the reference signature data; determining a matching node device from a target node device if the transaction data and the reference signature data are validated, and acquiring a signing key of the matching node device; determining data to be signed according to the transaction data, and signing on the data to be signed using the signing key of the matching node device to obtain endorsement signature data; and transmitting the endorsement signature data to the management device, wherein the management device generates a transaction block according to the endorsement signature data and the transaction data.

In one aspect, an interactive system is disclosed that includes a first sex toy including a sensor that is configured to be engaged by a first user. Manipulation of the first sex toy is detected by the sensor and triggers the interactive system to provide compensation to a second user. In another aspect, a wristband sensor is provided that is configured to attach to a first user's body and the sensor is configured to send signals to a central server which determines compensation for a second user.

Provided are a transaction delegation method, a transaction delegation system, and a computer readable medium storing a computer program. In this transaction delegation method: a second device that stores account data in a blockchain system receives, through communication outside the blockchain system, delegation data from a first device used by a user, the delegation data being for delegating execution of a desired transaction of the user in the blockchain system; a delegation transaction that causes an execution smart contract executing a transaction based on an account of the user in the blockchain system to execute the desired transaction is created on the basis of the delegation data transmitted from the first device; and the delegation transaction with payment of a fee token or a utility token required for executing a transaction is broadcast to the blockchain system on the basis of the account data.

Different aspects of the invention implement an enhanced DLT system, and corresponding method, that allows the peer-to-peer transmission of huge amounts of data packets of content between users, and to be stored in the DLT network, in a secure, trustworthy and efficient manner. By allowing the interface between any type of existing layer 1 DLT network, it does not require the complex, slow, costly and highly risk process involved in the generation of a new layer 1 DLT network. It opens up the range of possible applications of the DLT network to applications in Big Data, IOT, Web 3, MMOG, or any other environment that needs the trust provided by the immutability of data stored in the DLT network.

Systems and methods for performing a compliance check on a proposed transfer of one or more digital assets between a user and a counterparty. In some embodiments, one or more attribute values of the counterparty may be received, the one or more attribute values comprises a first attribute value indicating a status of a distributed ledger address of the counterparty. One or more corresponding attribute attestations may be accessed from a distributed ledger, and may be checked against the one or more attribute values. For instance, it may be checked whether each attribute attestation includes a cryptographic proof of the corresponding attribute value, and/or whether the cryptographic proof is electronically signed by a trusted entity. Additionally, or alternatively, it may be determined, based on the first attribute value indicating the status of the distributed ledger address of the counterparty, whether one or more compliance requirements are triggered.

Systems and methods for performing a compliance check on a proposed transfer of one or more digital assets between a user and a counterparty. In some embodiments, one or more attribute values of the counterparty may be received, the one or more attribute values comprises a first attribute value indicating a status of a distributed ledger address of the counterparty. One or more corresponding attribute attestations may be accessed from a distributed ledger, and may be checked against the one or more attribute values. For instance, it may be checked whether each attribute attestation includes a cryptographic proof of the corresponding attribute value, and/or whether the cryptographic proof is electronically signed by a trusted entity. Additionally, or alternatively, it may be determined, based on the first attribute value indicating the status of the distributed ledger address of the counterparty, whether one or more compliance requirements are triggered.

An artwork management method executed by one or more computers is provided. The artwork management method includes detecting, by a first computer included in the one or more computers, artwork included in a website, determining, by the first computer, whether or not a purchase transaction indicating purchase of the artwork detected is recorded in a blockchain network, and transmitting, by the first computer, a report indicating discovery of unauthorized use of the artwork, in a case where the first computer determines that the purchase transaction is not recorded. According to one aspect, the artwork management method suppresses illegal use of artwork while maintaining accessibility of the artwork.