Title:
BLOCK CHAIN-BASED IMAGE DATA RECORDING, OBTAINING AND VERIFYING
Document Type and Number:
WIPO Patent Application WO/2021/208952
Kind Code:
A1
Abstract:
Embodiments of the present description provide a block chain-based image data recording method and apparatus, a block chain-based image data obtaining method and apparatus, and a block chain-based image data verifying method and apparatus. In the image data recording method, a camera device monitors image data output of an image sensor, and when monitoring that the image sensor outputs an image data frame of the image data, performs hash calculation on the outputted image data frame to obtain a first hash value of the image data frame, the image data frame having image index information comprising timestamp information; and record the first hash value of the image data frame and the image index information to a block chain.
Inventors:
WU YINGQIANG (CN)
Application Number:
PCT/CN2021/087185
Publication Date:
October 21, 2021
Filing Date:
April 14, 2021
Export Citation:
Assignee:
ALIPAY HANGZHOU INF TECH CO LTD (CN)
International Classes:
G06F21/64
Foreign References:
| CN110210243A | 2019-09-06 | |||
| CN109583230A | 2019-04-05 | |||
| CN111460526A | 2020-07-28 | |||
| US20200097733A1 | 2020-03-26 | |||
| CN108537916A | 2018-09-14 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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