A blockchain enabled electronic futures trading system and method provided which allows for optional computerized delivery of cryptocurrency. A trade determination system allows a buyer and seller computer system to trade a future on a cryptocurrency such as bitcoin. Additionally, the trade determination system communicates with a central clearing computer system that allows the seller to provide, using the block chain, an amount of bitcoin equal to or greater than the underlying future by transferring the bitcoin from a seller bitcoin wallet associated with the seller computer system to a central clearing bitcoin wallet associated with the central clearing computer system. Upon the expiration date of the future, the seller may optionally select to provide to the buyer the bitcoin that was previously transferred to the central clearing bitcoin wallet instead of fiat currency. Additionally, the future may be associated with an upper boundary price and a lower boundary price.

Introduced here is a blockchain-secured repository that authenticates actions between mutually unsecured entities. In particular, the blockchain-secured repository stores origination data indicative of actions involving particular objects. By doing so, the repository enables secured interaction between unsecured parties by comparing origination details to subsequent reproductions of the origination details of each action. Additionally, the repository compares origination data with reproductions of the data prior to the reproduction becoming public. If the reproduced data contradicts the original data, the reproduced data is prevented from becoming public. The unsecured parties can also store data indicative of the origination terms between the unsecured parties in the blockchain-secured repository. Thus, the repository can objectively automate the processing of the terms. The purpose of the blockchain-secured repository is to provide a data-based approach to authenticating actions between unsecured parties.

An example operation may include one or more of receiving, via a payment network, a request to detokenize a payment token to process a payment transaction between a source and a target, detokenizing the payment token based on mapping data stored in a token vault, transmitting information about the detokenized payment token to a computing device associated with the request, generating a settlement token that comprises identifiers of the source and the target and an identifier of the payment token, and transmitting the settlement token to a blockchain on a blockchain settlement network which is parallel to the payment network.

An EMV-session data network includes a POS terminal and at least one computer server. The POS terminal is configured to receive ledger data and a cryptogram from a communications appliance, extract an account identifier from the ledger data, and transmit to the server an authorization request message that includes the account identifier, the authorization value and the cryptogram. The server is configured to transmit to the POS terminal an authorization response message that confirms that the cryptogram was generated by the communications appliance from the account identifier and the authorization value. The POS terminal is further configured to extract a token from the ledger data and to transmit to the server a loyalty rewards request message that includes the token. The server is further configured to initiate a points reward to an account that is associated with the token.

In an example involving a transaction conducted between a first party using a user mobile-identification-credential device (UMD) and a second party using a relying party system (RPS), RPS receives a request from UMD for transfer of an item, requests identification information of the first party from UMD, receives, based on consent of the first party, some or all user ID information associated with a mobile identification credential (MIC) which UMD received from an authorizing party system (APS), receives verification of the received user ID information, uses the verified user ID information to verify or not verify an identity of the first party, grants the request to transfer the item in exchange for payment or another item to be transferred from the first party to the second party when the identity of the first party is verified, and denies the request when the identity of the first party is not verified.

Embodiments relate to systems, apparatuses, and methods for performing transaction signing utilizing asymmetric cryptography and a private ledger. A transaction data is signed by a user device using a private key, and may be utilized in an authorization request message without including a real credential of the user. A transaction verification and accounting module (TVAM) can verify the signed transaction data and can continue processing the transaction.

The present disclosure provides a system constructed by connecting a mobile terminal and a service providing device, and a service providing method, wherein the service providing device and the mobile terminal are directly connected via an interface of the mobile terminal; the service providing device provides a service independently or through collaboration between the service providing device and various parties such as the mobile terminal and/or the background server based on the service information parsed and extracted the code information, identification information of any one or more parties among the user, the first mobile terminal, and the service providing device, and/or information bound to the identification information. Through active code scanning or passive code scanning or a combination of the two, the present disclosure may conveniently and quickly implement sensing access and effectively enhance security for operations such as mobile payment, etc.

A method for distributing collectable ownership based on blockchain networks, including steps of: (a) an online transaction server, in response to acquiring a distribution request for a collectable from an owner, (i) generating an ownership token contract, (ii) generating a contract registering transaction, and (iii) broadcasting the contract registering transaction to a blockchain network, to thereby instruct the blockchain nodes to (iii-1) verify the contract registering transaction, (iii-2) register the ownership token contract, included in the contract registering transaction in the blockchain network, and (iii-3) transfer an ownership token contract ID corresponding to the ownership token contract registered in the blockchain network to the online transaction server.

Aspects of the disclosure relate to storing sensitive information. A computing platform may split a signature key into shares, which may be used to regenerate the signature key. The computing platform may encrypt these shares using corresponding SEKs, and may subsequently encrypt the SEKs using corresponding operator keys. The computing platform may distribute the operator keys to user devices via corresponding HSMs. The computing platform may store the encrypted shares, encrypted SEKs, and identifiers of the user devices. The computing platform may receive requests for the encrypted SEKs from the user devices, and may send the respective encrypted SEKs accordingly. The user devices may return, to the computing platform, corresponding decrypted SEKs. The computing platform may use the SEKs to decrypt the encrypted shares, which may then be used to reconstruct the signature key.

A method of verifying identity for a computerized account, a computing device, and a storage medium are disclosed, the method obtains a username and searches for a verification address corresponding to the username according to a comparison table that records relationships between usernames and verification addresses. The verification address is stored on a blockchain network node, transaction information sent from an account address to the verification address is monitored through the verification address, and the account address is stored on the blockchain network node. If the transaction information sent to the verification address from an account address that matches the username, a prompt indicating that the username is successfully authenticated is sent to a user terminal corresponding to the username. The method enables identity verification in an efficient and a safe manner.