	US 11,983,160 B2
	Apparatus and method for providing sensor data based on blockchain
Young-Ho Kim, Daejeon (KR); Kyeong-Tae Kim, Daejeon (KR); Jeong-Nyeo Kim, Daejeon (KR); Seon-Gyoung Sohn, Daejeon (KR); Yun-Kyung Lee, Daejeon (KR); and Jae-Deok Lim, Sejong-si (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Apr. 13, 2021, as Appl. No. 17/229,423.
Claims priority of application No. 10-2020-0062259 (KR), filed on May 25, 2020.
Prior Publication US 2021/0365434 A1, Nov. 25, 2021
Int. Cl. H04L 12/70 (2013.01); G06F 16/23 (2019.01); H04L 9/06 (2006.01); H04L 67/12 (2022.01)

CPC G06F 16/2365 (2019.01) [H04L 9/0637 (2013.01); H04L 67/12 (2013.01)]

20 Claims

1. A method for providing sensor data in a sensor device based on a blockchain, comprising:

creating a device record using encrypted identification information of the sensor device;

registering the device record in the blockchain;

creating an event record using event information collected from a sensor;

registering a header of the event record, including information about a link to the device record, in the blockchain; and

distributing a body of the event record without the body of the event record being entered into the blockchain, the body being linked to the header of the event record,

wherein the header of the event record includes a record body link in which a hash value of the body of the event record is recorded,

wherein the record body link acts as a pointer that points to the body of the corresponding event record which is registered in an owner server or a distributed data repository,

wherein each of the owner server or the distributed data repository provides the body of the event record to a consumer terminal, and

wherein the consumer terminal verifies the body of the event record by acquiring the header of the event record, corresponding to the body of the event record, from the blockchain.