Importance

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Abstract

A method and a managing module “MM” (110) for managing an escrow payment service for purchases in a store of a vendor. The MM (110) receives purchase information comprising an identity of the vendor, an identity of a customer, a price, an offer specification and a condition. The MM (110) stores the identity of the vendor, the identity of the customer, the price and the offer specification. The MM (110) stores the respective number of the vendor and the customer and the condition in a smart contract on a blockchain (130). The MM (110) sends a request for acceptance of the smart contract and receives a response for accepting the smart contract. The MM (110) sets a state of the smart contract to accepted. The MM (110) sends a transaction request. The MM (110) stores the transaction identity in the smart contract. The MM (110) receives a transaction response indicating that the temporary credit card holds the funds corresponding to the price. The MM (110) stores, in the smart contract, an indication of that the transaction is completed. The MM (110) sends, to the server (111) and the user device (120), a notification confirming successful payment and login details for access to list of transactions of the smart contracts smart contract. The MM (110) checks the conditions of the smart contract to obtain an answer indicating fulfilment or non-fulfilment of the conditions. The MM (110) sets the state of the smart contract to completed or rejected. A corresponding computer program (403) and a computer program carrier (405) are also disclosed.

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First Claim