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1. WO2020098838 - BLOCKCHAIN-BASED TRUSTABLE GUARANTEES

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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
PATENT COOPERATION TREATY
PCT
INTERNATIONAL SEARCH REPORT
( PCT Article 18 and Rules 43 and 44)
International application No. Applicant's or agent's file reference
PCT/CN2020/074248 PCT2020424
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
03 February 2020
Applicant
ALIPAY (HANGZHOU) INFORMATION TECHNOLOGY CO., LTD.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
PART 1
PCT/CN2020/074248
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     13    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.
PART 2
PCT/CN2020/074248

A. CLASSIFICATION OF SUBJECT MATTER

     G06F; 21/60(2013.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     G06F; G06Q
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
CNPAT, CNKI, WPI, EPODOC: authentication, transfer, identify, proof, node, blockchain, guarantee, cyphertex, modify, ZKP

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
A
US 2019251553 A1 (ALIBABA GROUP HOLDING LTD.) 15 August 2019 (2019-08-15)
1-13
description, paragraphs [0020]-[0076]
(2)
A
CN 109558517 A (SUN YAT-SEN UNIVERSITY) 02 April 2019 (2019-04-02)
1-13
the whole document
(3)
A
US 2009271618 A1 (INTERNATIONAL BUSINESS MACHINES CORPORATION) 29 October 2009 (2009-10-29)
1-13
the whole document
(4)
A
CN 109614820 A (SHANDONG UNIVERSITY) 12 April 2019 (2019-04-12)
1-13
the whole document
(5)
A
US 2019205898 A1 (CHRONICLED, INC.) 04 July 2019 (2019-07-04)
1-13
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)		 Patent family member(s) Publication date
(day/month/year)
US 2019251553 A1
15 August 2019
BR 112019008160 A2
KR 20200054131 A
EP 3542336 A2
PH 12019500890 A1
AU 2018347190 A1
MX 2019004658 A
JP 2020503718 A
WO 2019072268 A2
CN 110419055 A
CA 3041160 A1
RU 2729595 C1
ZA 201902549 A
SG 11201903586 A1
IN 201947016650 A
VN 70118 A
10 September 2019
19 May 2020
25 September 2019
25 November 2019
21 May 2020
12 August 2019
30 January 2020
18 April 2019
05 November 2019
18 April 2019
11 August 2020
18 December 2019
30 May 2019
08 May 2020
25 May 2020
CN 109558517 A
02 April 2019
None
US 2009271618 A1
29 October 2009
WO 2008026086 A2
CN 101512535 A
JP 2010503252 A
EP 2080142 A2
06 March 2008
19 August 2009
28 January 2010
22 July 2009
CN 109614820 A
12 April 2019
WO 2020114240 A1
CN 110781521 A
11 June 2020
11 February 2020
US 2019205898 A1
04 July 2019
None
Name and mailing address of the ISA/:
National Intellectual Property Administration, PRC
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
22 October 2020
Date of mailing of the international search report:
17 November 2020
Authorized officer:
ZHAO,Xiaomin
Telephone No. 86-(10)-53961332
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