Patent AU-2019202832-A1 (AU)
Title: Cross-asset trading within blockchain networks
Inventor: ZHANG WENBIN
IPC: G06F16/18
Filed: 2019-01-31
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 
(19) World Intellectual Property 
(1) Organization11111111111111111111111I1111111111111i1111liiiii 
International Bureau (10) International Publication Number 
(43) International Publication Date W O 2019/072317 A2 
18 April 2019 (18.04.2019) W IPO I PCT 
(51) International Patent Classification: Zhejiang 311121 (CN). LI, Lichun; Alibaba Group Legal 
Not classified Department 5/F, Building 3, No.969 WestWenYi Road, Yu 
(21) International Application Number: HangDistrict, Hangzhou, Zhejiang 311121 (CN). HUANG, 
PCT/CN2019/074057 Zhangjie; Alibaba Group Legal Department 
5/F, Building 
3, No.969 WestWenYi Road, YuHangDistrict, Hangzhou, 
(22) International Filing Date: Zhejiang 311121 (CN).  
31 January 2019 (31.01.2019) (74) Agent: BEIJING BESTIPR INTELLECTUAL PROP
(25) Filing Language: English ERTY LAW CORPORATION; Room 409, Tower B, Ka 
Wah Building, No. 9 Shangdi 3rd Street, Haidian District, 
(26)PublicationLanguage: English Beijing 100085 (CN).  
(71) Applicant: ALIBABA GROUP HOLDING LIMITED (81) Designated States (unless otherwise indicated, for every 
[-/CN]; Fourth Floor, One Capital Place, P.O. BOX 847, kind national protection available): AE, AG, AL, AM, 
GeorgeTown,GrandCayman(KY). AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 
(72) Inventors: ZHANG, Wenbin; Alibaba Group Legal De- CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
partment 5/F, Building 3, No.969 West Wen Yi Road, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 
Yu Hang District, Hangzhou, Zhejiang 311121 (CN). LEI, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 
Hao; Alibaba Group Legal Department 5/F, Building 3, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 
No.969 West Wen Yi Road, Yu Hang District, Hangzhou, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 
(54) Title: CROSS-ASSET TRADING WITHIN BLOCKCHAIN NETWORKS 
300 
Participant A 308 Participant B 
302 304 
- - - -. -I 
Account A iAccount B 
- - -I 
3 Network 
322 
ParticpantC 312 
306 
I ----------------
Account C 
I I 320 
I ------------------- I 
___----_----------------------
FIG. 3 
t (57)Abstract: Implementations are directedto cross-asset trading in blockchain networks, andinclude afirstnode providing transaction 
information based on a first value, a second value, and an exchange rate of a second node, receiving, from the second node, a first 
evidence set, a first range proof, and a digital signature of the second node, and submitting the transaction for verification based on 
the first range proof, a second range proof, the first evidence set, a second evidence set, a digital signature of the first node, and the 
digital signature of the second node, the transaction being executed to decrease a balance of the first node by the first value, increase 
a first balance of the second node by the first value, decrease a second balance of the second node by the second value, and increase 
a balance of the third node by the second value.
W O 20 19/0723 17 A 2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 
OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 
SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 
TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.  
(84) Designated States (unless otherwise indicated, for every 
kind of regional protection available): ARIPO (BW, GH, 
GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 
UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 
TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 
EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 
MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 
TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 
KM, ML, MR, NE, SN, TD, TG).  
Published: 
- upon request of the applicant, before the expiration of the 
time limit referred to in Article 2](2)(a) 
- without international search report and to be republished 
upon receipt of that report (Rule 48.2(g))