CONTROL METHOD, SERVER, AND DATA STRUCTURE
    11.
    发明公开

    公开(公告)号:US20240037093A1

    公开(公告)日:2024-02-01

    申请号:US18377085

    申请日:2023-10-05

    CPC classification number: G06F16/2379

    Abstract: A control method according to the present disclosure includes: receiving, from a terminal operated by a first user who is one of parties that have concluded a first contract, first transaction data that includes a first smart contract corresponding to the first contract and a first electronic signature associated with the first user; executing a consensus algorithm with a plurality of other servers; and recording a block including the first transaction data in a distributed ledger. The first smart contract includes (i) content of the first contract which is a main contract, (ii) a variable that is provisional and used for identifying a second smart contract corresponding to a second contract which is to be newly concluded as a sub contract of the first contract, and (iii) a condition for creation of the second smart contract.

    CONTROL METHOD, DEVICE, AND RECORDING MEDIUM

    公开(公告)号:US20220309495A1

    公开(公告)日:2022-09-29

    申请号:US17838846

    申请日:2022-06-13

    Abstract: A control method includes: obtaining first transaction data that includes a first variable indicating first information on a first contract made between a first user and a second user, and a second variable set to a predetermined value indicating second information is undetermined; storing the first transaction data into the distributed ledger; executing storing processing of reading out the second variable, and storing it into a rewritable storage in a server; obtaining second transaction data that includes a third variable indicating third information on a second contract made between the first user and a third user, and a change command for changing the second variable, based on the third variable; storing the second transaction data into the distributed ledger; and executing change processing of changing, according to the change command, the second variable from the predetermined value, after the second transaction data is stored into the distributed ledger.

    CONTROL METHOD, SERVER, AND RECORDING MEDIUM

    公开(公告)号:US20220150074A1

    公开(公告)日:2022-05-12

    申请号:US17582400

    申请日:2022-01-24

    Abstract: A control method includes: receiving first information pertaining to a first contract from a first terminal used by a first user who is one of two parties who have agreed to the first contract; when consent of a party aside from the two parties is required to validate the first contract, identifying a second user as the party aside from the two parties with reference to a ledger storing information pertaining to a past contract, and transmitting the first information to a second terminal operated by the second user; obtaining second information in which a confirmation result indicating whether the second user consents to the first contract and a digital signature of the second user are added to the first information; and confirming the second information, and when the confirmation result indicates consent, setting the first contract as a valid contract and storing the second information in the ledger.

    CONTROL METHOD, SERVER, AND DATA STRUCTURE

    公开(公告)号:US20220027357A1

    公开(公告)日:2022-01-27

    申请号:US17497302

    申请日:2021-10-08

    Abstract: A control method according to the present disclosure includes: receiving, from a terminal operated by a first user who is one of parties that have concluded a first contract, first transaction data that includes a first smart contract corresponding to the first contract and a first electronic signature associated with the first user; executing a consensus algorithm with a plurality of other servers; and recording a block including the first transaction data in a distributed ledger. The first smart contract includes (i) content of the first contract which is a main contract, (ii) a variable that is provisional and used for identifying a second smart contract corresponding to a second contract which is to be newly concluded as a sub contract of the first contract, and (iii) a condition for creation of the second smart contract.

    CONTROL METHOD, CONTROL SYSTEM, AND RECORDING MEDIUM

    公开(公告)号:US20220012649A1

    公开(公告)日:2022-01-13

    申请号:US17482986

    申请日:2021-09-23

    Abstract: A control method includes obtaining, from a first terminal of a first user, reservation information including a use start date and time of an electric-powered vehicle that the first user hopes to use at a future time and that is being used by a second user; obtaining an amount of remaining battery of the electric-powered vehicle; calculating charge start date and time based on the amount of remaining battery obtained, the charge start date and time being a date and time at which the electric-powered vehicle should start being charged so that an amount of remaining battery of the electric-powered vehicle becomes no less than a predetermined value at the use start date and time included in the reservation information obtained; and transmitting notification information including the charge start date and time calculated to the electric-powered vehicle.

    DATA MANAGEMENT METHOD, DATA MANAGEMENT SYSTEM, AND RECORDING MEDIUM

    公开(公告)号:US20210149917A1

    公开(公告)日:2021-05-20

    申请号:US17159484

    申请日:2021-01-27

    Abstract: A data management method performed by a first authentication server included in a plurality of authentication servers each having a distributed ledger in a data management system including a device and the plurality of authentication servers includes: obtaining first transaction data generated by the device and including device data obtained or generated by the device; and generating a block including the first transaction data and recording the generated block in the distributed ledger, when the device data included in the first transaction data is first data indicated in an information type list which is a data list indicating data that is subject to recording in the distributed ledger and related to a predetermined contract.

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