A method for processing cryptographic currency transactions through user-based blockchain ledgers includes: receiving, by blockchain node in a blockchain network, a new cryptographic currency transaction from a first computing device including unspent transaction outputs, a sender public key, receiver public key, destination address, and cryptographic currency amount; identifying, by the blockchain node, a sending blockchain associated with the sender public key including the unspent transaction outputs; validating, by the blockchain node, the sending blockchain by generating a hash value using the sending blockchain and comparing the generated hash value to a historic sender hash value associated with the sender public key; generating, by the blockchain node, a new sender hash value by hashing a combination of the sending blockchain and the new cryptographic currency transaction; and transmitting, by the blockchain node, the generated new sender hash value to a plurality of additional nodes in the blockchain network.

The Computationally Efficient Transfer Processing, Auditing, and Search Apparatuses, Methods and Systems (“SOCOACT”) transforms smart contract request, crypto currency deposit request, crypto collateral deposit request, crypto currency transfer request, crypto collateral transfer request inputs via SOCOACT components into transaction confirmation outputs. Also, SOCOACT transforms transaction record inputs via SOCOACT components into matrix and list tuple outputs for computationally efficient auditing. A blockchain transaction data auditing apparatus comprises a blockchain recordation component, a matrix Conversion component, and a bloom filter component. The blockchain recordation component receives a plurality of transaction records for each of a plurality of transactions, each transaction record comprising a source address, a destination address, a transaction amount and a timestamp of a transaction; the source address comprising a source wallet address corresponding to a source digital wallet, and the destination address comprising a destination wallet address corresponding to a destination virtual currency wallet; verifies that the transaction amount is available in the source virtual currency wallet; and when the transaction amount is available, cryptographically records the transaction in a blockchain comprising a plurality of hashes of transaction records. The Bloom Filter component receives the source address and the destination address, hashes the source address using a Bloom Filter to generate a source wallet address, and hashes the destination address using the Bloom Filter to generate a destination wallet address. The Matrix Conversion component adds the source wallet address as a first row and a column entry to a stored distance matrix representing the plurality of transactions, adds the destination wallet address as a second row and column entry to the stored distance matrix representing the plurality of transactions, adds the transaction amount and the timestamp as an entry to the row corresponding to the source wallet address and the column corresponding to the destination wallet address; and generate a list representation of the matrix, where each entry in the list comprises a tuple having the source wallet address, the destination wallet address, the transaction amount and the timestamp.

Aspects relate to providing an efficient way to claim a non-fungible token (NFT) associated with a physical object, such as a merchandise item. A user device may scan, using a scanning device, for access information of a physical object, and determine a link to an NFT associated with the physical object based on the scanned access information. Subsequently, the user device may transmit, to an NFT server device, an NFT command indicating the link and a user account of a user to cause the NFT to be claimed by the user account. Other aspects, embodiments, and features are also claimed and described.

Disclosed herein are system, method, and computer program product embodiments for managing point-based transactions backed by the intrinsic value of physical objects. In some embodiments, a transaction ledger system may manage a point-based currency backed by transactions corresponding to the intrinsic value of a physical object. The transaction ledger system may use an appraisal process to estimate a point value for the physical object. The transaction ledger system may also use an authentication process to provide consumer confidence that the physical good is authentic. The transaction ledger system may also manage sensor tag serial codes, such as radio-frequency identification (RFID) serial codes, to quickly verify authenticity when the physical object is resold. When executing transactions, the transaction ledger system may record transaction and point exchange data on a centralized and immutable ledger to prevent malicious attackers from falsifying data.

Techniques for providing a localized blockchain that uses a mesh network to facilitate transactions for a localized event are provided. An electronic device can receive data from a localized mesh network to establish the device as a node on the localized mesh network. The established node can generate a cryptocurrency wallet that can be loaded with an initial amount of localized cryptocurrency tokens from a total amount of localized cryptocurrency tokens. The total amount of localized cryptocurrency tokens can be previously mined by a central authority of the localized mesh network. The established node can conduct transactions within the localized mesh network utilizing the localized cryptocurrency tokens. The established node can receive a portion of a cryptocurrency token for transmitting transactional data to a next nearest node on the localized mesh network to help facilitate a transaction involving other nodes on the network.

The present invention discloses a method by which a secure ledger network is deployed to provide assurance related to title of IP assets. Specifically, the invention seeks to improve the risk associated with IP based transactions and reduce the time related to researching color of title related to the same.

A device includes one or more NFC chips that are preprogrammed to provide a payee's identification and information for launching any of several P2P cashless payment applications to which the payee is subscribed, to a mobile phone of a payor. When a mobile device of a payor is brought to the vicinity of an NFC chip of the device, the mobile device launches a corresponding P2P cashless payment application. The P2P cashless payment application shows the payee's information and the payor may proceed to make a payment to the payee. The device may include an NFC chip that is preprogrammed to provide the payee's identification and the information for launching a single application on the mobile device of the payor to display the P2P cashless payment applications to which the payee is subscribed. The payor may then proceed to make a payment to the payee using the payor's mobile device.

A method relates to a terminal for managing electronic coin datasets and to a corresponding terminal. The electronic coin datasets are output by a central issuer entity, wherein each electronic coin dataset has a test value, and the test value is incremented when the electronic coin dataset is directly transmitted between two terminals or the test value is invariant in the event of an action carried out by terminals on the electronic coin dataset. In the method, it is determined whether the electronic coin dataset is displayed by the terminal in the payment system or whether the electronic coin dataset is returned to the central issuer entity. A method in a payment system is provided for managing electronic coin datasets, to a corresponding payment system, and to a monitoring entity.

In one aspect, the present disclosure proposes methods, devices, systems, and data structures for implementing an ordered, append-only data logging system. In particular a method comprises creating a transaction of a first type comprising an input associated with a transaction output from a latest transaction in the set of transactions. Then creating a transaction of a second type. Finally submitting both the transaction of the second type and the transaction of the first type to the blockchain.

A method for cryptocurrency exchange between multiple parties using threshold signature cryptocurrency wallets includes steps for creating threshold signature cryptocurrency wallets shared between a set of parties and a mediator for trading cryptocurrencies. The method may include steps for dividing a threshold private key, corresponding to each of the threshold signature cryptocurrency wallets, into n shares based on (t, n)-threshold signature scheme and sharing masked shares, corresponding to the threshold private key for each of the threshold signature cryptocurrency wallets, by the set of parties and the mediator. The method may include steps for validating correctness of all masked shares of the threshold private keys by the set of parties and the mediator. The method may include steps for signing a withdrawal cryptocurrency transaction jointly by the set of parties or signing a withdraw deposit transaction jointly by the at least one party and the mediator.