Samsung Sds Co., Ltd.

Ji Hwan Rhie

Jeong Ho Kim

Young Ju Kim

Young Kwon Kim

Dong Hoe Kim

Nyun Soo Hyun

Jeong Hee Yoon

Seung Won Son

Doo Yeol Kim

Kwang Wook Lee

Hee Jung Wang

Se Hyung Kim

Provided is a blockchain management apparatus comprising at least one hardware processor configured to implement a block generation order control unit which prevents a block generation node of a plurality of blockchain nodes from generating a new block of a blockchain in response to a determining, by the blockchain management apparatus, that the new block is a block generated by the block generation node within a unit section, wherein the unit section corresponds to a preset number of blocks measured from a current block corresponding to a current block height of the blockchain, and the blockchain management apparatus manages a permission-based blockchain network including the plurality of blockchain nodes.

System for processing data based on blockchain and operating method thereof

Provided are a method of processing payment based on a blockchain, which is performed by a payment service providing server. The method comprising receiving a request from a terminal of a seller for an electronic wallet address of a payer, the request comprising identification information of the payer, obtaining the electronic wallet address of the payer based on the identification information of the payer through a blockchain system, in response to the receiving the request for the electronic wallet address, transmitting the obtained electronic wallet address of the payer to the terminal of the seller, receiving payment request information from the terminal of the seller, the payment request information comprising the obtained electronic wallet address of the payer, transmitting the payment request information to a terminal of the payer, receiving payment information from the terminal of the payer, the payment information comprising the payment request information and an electronic signature of the payer and processing a payment transaction based on the payment information through the blockchain system in response to the receiving the payment information.

Method of processing payment based on blockchain and apparatus thereof

Provided is a method comprising acquiring information on a branch formed on blockchain data, calculating a difference in a block height between a target block corresponding to a current block height of the blockchain data and a block in a non-branched state based on the information on the branch and calculating a transaction confirmation reliability of transaction data recorded in the target block based on the difference in the block height, wherein the transaction confirmation reliability indicates a probability that, for as k blocks are further connected after the target block, a position of the block at which the transaction data is recorded will not change, wherein k is an integer greater than zero.

Method for calculating confirmation reliability for blockchain based transaction and blockchain network monitoring system for performing the method

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Seoul, South Korea

Ji Hwan Rhie