The present disclosure provides a system and method for managing fund transfer. The system has one or more processors and a memory coupled to the processors and enables a user to link financial accounts to a user account, verify KYC documents before linking the financial accounts, and generates a unique code comprising details of the user account to safely transfer funds such as cryptocurrency. The system is further configured to executed at least one financial service request utilizing the unique code. A method for fund transfer and a system architecture for data routing for fund transfer is also provided herein

Examples relate to multiple microprocessor architecture for cold storage of digital currency. A hardware wallet may include a first microprocessor configured to establish a secure connection with a mobile device connected to a network having access to a blockchain and a second microprocessor configured to generate a private key and a public key for communication of transaction data onto the blockchain. The second microprocessor may initially use a hash function and the private key to encrypt the transaction data and produce a digital signature independent from the first microprocessor and subsequently provide the digital signature and the public key to the first microprocessor for communication onto the blockchain via the secure wireless connection with the mobile device. The second microprocessor may also encrypt and store the private key securely within the wallet's memory such that the private key is readable only by the second microprocessor.

Method, device, computer program and apparatus are disclosed for: receiving by a first node from a second node a request for a resource controlled by a first node; and determining by the first node whether the request is authorized; wherein the determining includes: receiving from the second node a cryptocurrency transaction message indicative of a payment; and verifying credibility of the cryptocurrency transaction message.

A system and method of verifying a user for participation in a block chain of a distributed network. The method includes receiving, by one or more validation devices of the distributed network, a request for participation in adding transaction records to the block chain, the request being received from a mobile communication device of the user and including behavioral data collected by the mobile communication device. In response to determining that the behavioral data satisfies a human characteristic threshold, determining that the behavioral data is not associated with another device of the distributed network. In response to both those conditions above, verifying the user and enabling the user to participate in the block chain distributed network by adding a block including transaction records to the block chain via the mobile communication device.

A computing system can facilitate cross-medium transactions through exchanges without having dependency on exchange computer infrastructure, which when down, can cause open transactions to fail. In response to detecting a downed exchange, the system can execute a failover state to facilitate any transactions initially reliant upon the downed exchange.

Disclosed are a payment processing apparatus using a virtual currency with an automatic trading function of the virtual currency and an operating method thereof. The present invention may provide a platform which may use a virtual currency as a trading means of goods by presenting a payment processing apparatus for supporting a product purchaser to pay a price of a product to a product seller using a virtual currency and an operating method thereof.

Systems and methods for implementing a secure digital wallet processing system. An example method comprises: receiving, by a computer system, a distributed ledger transaction and a public address; retrieving, from a key management system, a private key corresponding to the public address, wherein the key management system comprises a hardware security module (HSM) that generated the public address from the private key; signing the distributed ledger transaction by the private key; and providing the signed distributed ledger transaction to a distributed ledger.

In some embodiments, the present description provides a distributed blockchain ledger system that includes at least: a first distributed blockchain ledger, configured to storing first cryptographically-secured data representative of a plurality of tokenized assets; a second distributed blockchain ledger, configured to storing second cryptographically-secured data representative of a plurality of transactions related to the plurality of tokenized assets; and a plurality of smart contracts that is configured to self-execute to at least: store the first cryptographically-secured data on the first distributed blockchain ledger, store the second cryptographically-secured data on the second distributed blockchain ledger, and maintain a plurality of digital associations between the first cryptographically-secured data of the first distributed blockchain ledger and the second cryptographically-secured data of the second distributed blockchain ledger.

A mechanism for privacy protected, portable and decentralized credentialed information issuance, lifecycle administration and access control supporting autonomously verifiable issuer attestation and provenance using blockchain distributed ledger technology. The embodied invention makes unauthorized tampering with credentialed information transparently detectable using local edge validation requiring only the execution of cryptographic libraries as found within the normative Bitcoin Core or equivalent blockchain implementation. The invention prevents unauthorized access, unregulated copy distribution, and orphaned ownership lacking issuer provenance as demonstrated in identity theft. The preferred embodiment provides the foundational capability of tamper resistant content leveraging modification detectable digital information credentialing, remote administration, localized independent state validation, distributed access control, metadata enrichment, application eventing and decentralized processing instruction signaling. The foundational aspect of the preferred embodiment directs authorized credentialed information issuers to persist, store and distribute information content hosted within cryptographically secure blockchain client “container-wallets”.

Systems and methods are provided for minting payment loan tokens to conduct digital loan transactions within a blockchain-based digital loan payment network. The payment loan tokens are pegged to fiat currency or digital currency. The computing system is a node in the blockchain-based digital loan payment network. A number of payment loan tokens to be provided to a borrower can be determined based on a digital loan transaction. The borrower is a network participant associated with the blockchain-based digital loan payment network. The number of payment loan tokens can be provided for deposit in a digital wallet associated with the borrower based on the digital loan transaction. Payees that receive payment loan tokens from the borrower can redeem the payment loan tokens as fiat or digital currency. A data record that represents the digital loan transaction can be generated. The data record is posted to a blockchain associated with the blockchain-based digital loan payment network.