In the labor claim transaction system in response to a selection of a claim to be sold, a worker node notifies an employer node of a sale application, and records the buyer and the sale amount. When determining that there is no problem with the claim to be sold, the employer node records sale approval information in a distributed ledger, and notifies a buyer node of a sale approval notification. When determining that there is no problem with the claim to be sold, the buyer node records buying approval information in the distributed ledger, and notifies a financial institution node of the sale approval notification. The financial institution mode checks that the sale approval information and the buying approval information are recorded, and records sale amount transfer completion information.

Token exchange systems, methods and apparatus are disclosed that allow a user to get access to a wired, wireless, or virtual network or the like by earning tokens to be used for said access, in which the user may earn tokens by making purchases or completing tasks in a token exchange system. In an exemplary embodiment, the user connects to a network, interacts with the network in order to earn tokens by making purchases through said network or completing tasks assigned by said network, and exchanges tokens for access time, whereby said user will be connected to the network or the internet for an amount of time commensurate with the amount of tokens exchanged for the access time.

A method for managing an anonymous e-cash transaction includes receiving a request to withdraw a payment coin, generating a combination of random attributes for the payment coin, creating the payment coin based on the combination of attributes, and issuing the payment coin in exchange for a first asset. Each attribute of the combination of attributes may represent a different portion of a total value of the payment coin. A partially spent value of the payment coin may be based on a revealed subset of the combination of attributes. The method further includes creating a refund coin based on the combination of attributes and spending the refund coin to issue a refund having a value corresponding to an unspent portion of the payment coin. Each attribute of the combination of attributes of the refund coin may represent a different portion of a total value of the refund coin.

Disclosed herein is a short range communication enabled object for facilitating proximity based interaction with at least one electronic device. Further, the short range communication enabled object may include a memory device configured for storing a designated value associated with a predetermined action. Further, the short range communication enabled object may include a processing device communicatively coupled to the memory device. Further, the processing device may be configured for manipulating the designated value. Further, the short range communication enabled object may include at least one sensor communicatively coupled to the processing device. Further, the at least one sensor may be configured for generating at least one sensor data. Further, the manipulating of the designated value may be based on the at least one sensor data. Further, the short range communication enabled object may include a transmitter device configured for transmitting data over a short range communication channel to the at least one electronic device.

Methods, systems, and apparatus for risk mitigation for a cryptoasset custodial system include transmitting an endorsement request for a cryptoasset transaction to a user device configured to cause the user device to prompt a user to endorse the cryptoasset transaction. Multiple data points are collected from mobile devices associated with the user. The data points indicate an identity of the user. A cryptographic endorsement of the cryptoasset transaction is received from the user device. A graphical visualization including a risk metric is generated based on the data points. The risk metric indicates a risk of accepting the cryptographic endorsement from the user device. Generating the graphical visualization includes determining whether the plurality of data points matches expected values.

The method 10 for mobile cryptocurrency wallet connectivity can include facilitating a blockchain transaction S100 and establishing an initial connection between a mobile client and a web client S200. The system 20 for mobile cryptocurrency wallet connectivity can include a browser 110, one or more websites 120, a web client 130, a mobile application 140, and a backend server 150.

In some embodiments, the present description provides a computer-based system having a dual-exchange cryptographically-secured platform (DECSP); where the DECSP includes: a first-type cryptographically-secured platform (first-type CSP) and a second-type cryptographically-secured platform (second-type CSP); where the first-type CSP includes a first computing device; where the second-type CSP includes a second computing device; where the first computing device is connected to a blockchain and configured to issue crypto-tokens associated with a non-crypto asset, perform blockchain-based activities, and automatically transmit an instruction associated with the non-crypto asset to a second computing device in response to an issuance of the crypto-token by the first computing device; where the second computing device is configured to: receive the instruction associated with the one non-crypto asset from the first computing device and automatically communicate with a non-crypto asset electronic marketplace to execute a transaction associated with the non-crypto asset to obtain a position in the non-crypto asset.

Provided are systems, methods, techniques, instruction sequences, and computer program products associated with and configured to the technical field of special purpose machines that facilitate generation and provision of application program interfaces (or APIs). The APIs automatically compare the geographic position of a user resource with a known database of events to determine the likelihood that the user is attending the event. In response to determining that the likelihood exceeds a predetermined limit, the APIs communicate notifications to update user information to service providers, such as financial networks, to improve the performance of the user's portable financial devices and reduce financial fraud associated with offline transactions.

A hardware security module (HSM) generates a client key for an account holder of a cryptoasset custodial system. The HSM encrypts the client key to generate an encrypted client key using a hardware-based cryptographic key within a secure storage device. The encrypted client key is transmitted to client devices. The HSM deletes the encrypted client key from the secure storage device. Each client device stores the encrypted client key in an offline secure enclave. A request to authorize a cryptoasset transaction is received. The HSM determines that signed messages endorsing the cryptoasset transaction have been received from at least some client devices in satisfaction of a quorum. The encrypted client key is received from at least one client device. The HSM decrypts the encrypted client key. The HSM signs an approval message for the cryptoasset transaction using a cryptoasset key based at least in part on the client key.

An electronic device is provided. The electronic device includes a display, and a processor configured to generate at least one hierarchy deterministic path, obtain at least one public key using a root seed and the at least one hierarchy deterministic path, obtain a blockchain address for a blockchain account from the at least one public key, obtain information about the blockchain address from a blockchain network based on the blockchain address, the information about the blockchain address including information about a balance of the blockchain account, and display at least part of the information about the blockchain address through the display, based on the information about the balance of the blockchain account.