Methods, systems, and computer readable media for providing Decentralized Finance (DeFi) are disclosed. According to one method, a method for providing digital property swap occurs at a computing platform executing a DeFi protocol, wherein the computing platform is acting as a digital property exchange center. The DeFi protocol method comprising: receiving one kind of digital property from a user; calculating an equivalent amount of another digital property; sending the said equivalent amount of the said other digital property to the said user. According to one system, a system for providing Decentralized Finance (DeFi) includes at least one computing platform, wherein the computing platform is executing a DeFi protocol and is acting as a swapping platform of the DeFi protocol. The DeFi platform is configured for: receiving digital properties as liquidity from liquidity providers; receiving one kind of digital properties from a user; and sending another kind of digital properties to the said user. The DeFi platform described herein is comprised of mathematical curves that satisfy the supply and demand principle. The main difference between the proposed DeFi protocol and known variants of DeFi systems (such as Uniswap V2) consists in the way that a liquidity provider does not need to provide both kinds of digital properties to establish a market maker. This means that a liquidity provider can establish a market by providing only one kind of digital property and establish the so-called Initial Coin Offer (ICO) process.

Systems, methods, and storage media for settling transaction payments by linking third-party financial accounts to user profiles, issuing payment cards to users, and facilitating real-time physical and virtual payments to vendors. The user profiles display available assets for purchase by the users who submit requests to execute physical or virtual transactions. Once the request is submitted, the user's device will display a timestamped notification indicating their currently held assets, their respective account balances for at least one of their third-party financial accounts, or a combination thereof. Users can sell assets, withdraw funds from at least one of their third-party financial accounts, be connected to third-party brokers or third-party cryptocurrency exchanges, and exchange assets to fund their purchases.

A plurality of transactions initiated by a user through a user account and need to be concurrently executed is received. A Nonce list corresponding to the user account and maintained in a blockchain is accessed. The Nonce list includes a plurality of Nonce records, and each Nonce record includes a group identifier and a Nonce value. Available Nonce records are obtained for the plurality of transactions from the Nonce list. The available Nonce records are respectively added to the plurality of transactions. The plurality of transactions are published in the blockchain, so that a node device in the blockchain matches the available Nonce record in a transaction published by the client device with the Nonce records in the Nonce list. When the available Nonce record matches a target Nonce record in the Nonce list, the node device processes the transaction, and concurrently executes a plurality of the processed transactions.

According to one perspective, the invention provides a technical arrangement to calculate, register and/or apportion costs and/or generate income in proportion to the current ownership of an asset. One or more embodiments also comprise a novel technique for generating cryptographic sub-keys. Thus, one benefit provided by the invention is that it allows the secure distribution of costs and income for an asset registered and maintained on the Blockchain. In turn, this increases the capability of such assets to meet the real-world needs of various entities such as the asset itself and investing parties. In one embodiment the invention provides a computer-implemented system for controlling a transfer made via a blockchain in respect of an asset, the system comprising an asset having a plurality of private cryptographic keys, each private key being associated with an owner of the asset; a registry comprising a plurality of public cryptographic keys wherein each public key corresponds to a private key in the asset's plurality of private keys, and is associated with a redeem script hash that can be identified within an unspent blockchain transaction; a smart contract comprising at least one rule relating to the automated generation of one or more blockchain transactions to enable a transfer to be made in respect of the asset; and a computing agent arranged to evaluate and/or execute the at least one rule of the smart contract. In some embodiments, a hierarchy of computing agents is managed by a master agent to carry out the asset related tasks defined in the smart contract. The master and subordinate agents communicate to execute discrete tasks.

A system and related methods configured to embed information into the blockchain of a mined crypto-currency. The system generally comprises a receiver attached to a crypto-currency mining device, that is in communication with a transmitter connected to a power grid or a power generator that can take information relating to the power grid or the energy production and transmit it to the receiver. The receiver will then send the information to the crypto-currency mining device to embed it into the blockchain of a mined crypto-currency. The receiver and transmitter can also take the information together with pre-defined conditions in order to determine if crypto-currency is suitable to be mined.

A method includes receiving, on a main chain, a block including multiple transactions. The method includes determining, on a side chain, the order of the transactions in the block based on a bidding process and delivering an amount of currency based on the order of the transactions.

Embodiments provide methods and systems for removing temporal biases in classification tasks. Method performed by server system includes accessing a transaction graph associated with a particular time duration and determining a set of local features and aggregate features associated with each node based on labeled data. Method includes generating via a machine learning model, a set of intermediate node representations associated with each of the plurality of nodes based on the set of local features and the set of aggregate features. Method includes generating via a fraud model and a timestep model, a fraud classification loss, and a timestep classification loss based on the set of intermediate node representations. Method includes determining an adversarial loss value based on the fraud classification loss and the timestep classification loss. Method includes determining a set of optimized parameters for the machine learning model based on the adversarial loss value.

A method for dispute resolution for a blockchain transaction includes: receiving, by a receiver of a processing server, a blockchain transaction identifier and a dispute reason code from a first computing device of a blockchain network, the blockchain transaction identifier and the dispute reason code comprising a dispute request, the blockchain transaction identifier identifying a transaction on a blockchain; transmitting, by the receiver of a processing server, the blockchain transaction identifier and the dispute reason code to a processing device of the processing server; identifying, by the processing device of the processing server, the transaction, a merchant blockchain address, and a currency amount within a blockchain data value of the blockchain based on the blockchain transaction identifier; determining, by the processing device of the processing server, the transaction is invalid; and performing, by the processing device of the processing server, a dispute resolution process for the blockchain transaction.

Provided are computer-implemented methods for linking accounts across systems which may include receiving an authorization request message including transaction data associated with a payment transaction and a primary account number (PAN); identifying a token corresponding to the PAN; transmitting a request message comprising at least a portion of the transaction data associated with the payment transaction and the token to at least one employer system, wherein the at least one employer system is associated with at least one employer institution; and receiving, from the at least one employer system, at least one response message comprising transaction adjustment data associated with an adjustment to the payment transaction. Methods may also include adjusting at least one parameter of the payment transaction based at least partially on the transaction adjustment data. Systems and computer program products are also provided.

The present disclosure relates to systems, methods, and non-transitory computer readable storage media for implementing a scalable, secure, efficient, and adaptable distributed digital ledger transaction network. Indeed, the disclosed systems can reduce storage and processing requirements, improve security of implementing computing devices and underlying digital assets, accommodate a wide variety of different digital programs (or “smart contracts”), and scale to accommodate billions of users and associated digital transactions. For example, the disclosed systems can utilize a host of features that improve storage, account/address management, digital transaction execution, consensus, and synchronization processes. The disclosed systems can also utilize a new programming language that improves efficiency and security of the distributed digital ledger transaction network.