Patent AU-2019381980-A1 (AU)
Title: Taking snapshots of blockchain data
Inventor: LU ZHONGHAO
IPC: G06F16/23
Filed: 2019-11-29
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 2020/098818 A3 
22 May 2020 (22.05.2020) W IPO I PCT 
(51) International Patent Classification: Wal Building, No. 9 Shangdi 3rd Street, Haidian District, 
G06F 16/23 (2019.01) Beijing 100085 (CN).  
(21) International Application Number: (81) Designated States (unless otherwise indicated, for every 
PCT/CN2019/121995 kind ofnational protection available): AE, AG, AL, AM, 
(22)InternationalFilingDate: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 
e9 November 2019 (29.11.2019) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 
(25) Filing Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 
KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 
(26)PublicationLanguage: English MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 
(71) Applicant: ALIPAY (HANGZHOU) INFORMATION OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 
TECHNOLOGY CO., LTD. [CN/CN]; No. 556 Xixi SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 
Road, 8th Floor, Section B, Suite 801-11, West Lake Dis- TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.  
trict, Hangzhou, Zhejiang 310000 (CN). (84) Designated States (unless otherwise indicated, for every 
(72) Inventor: LU, Zhonghao; No. 556 Xixi Road, 8th Floor, kind of regional protection available): ARIPO (BW, GH, 
Section B, Suite 801-11, West Lake District, Hangzhou, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 
Zhejiang 310000 (CN). UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 
(74) Agent: BEIJING BESTIPR INTELLECTUAL PROP- EEEFlpF, GBGR HRH E, IS ,ITLTLUL, 
ERTY LAW CORPORATION; Room 409, Tower B, Ka MC, MK, MT, NL, NO, PL, PT,RO, RS, SE,SI, SK, SM, 
(54) Title: TAKING SNAPSHOTS OF BLOCKCHAIN DATA 
812 814 816 800 
802 810 
Phosphor MarkerBock 
- 804-,, 
Shard 829 '\ \'8 '\ \\8 ' 
806-,,\ 
Shard \\6 \$ i 
FIG. 8 
en 
(57) Abstract: Methods, systems, andapparatus, including computer programs encoded oncomputer storage media, forblockchain data 
00 storage. One of the methods includes sending a marker message from a first blockchain node in a first shard of a blockchain network to 
a second blockchain node in a phosphor of the blockchain network, receiving a marker block from the second blockchain node, wherein 
00 
00the maker block is associated with the phosphor and includes the marker message, creating a first block associated with the first shard 
that includes a block associated with the phosphor that immediately precedes the marker block, creating a second block associated with 
the first shard that includes the marker block, generating, during creation of the second block associated with the first shard, a snapshot 
of state information corresponding to a newest block associated with the first shard, and storing the snapshot of the state information.
W O 2020/098818 A31111I||I||||I|||||||||||I|I|I||||||||||||||||||||||||||||H||||||||| 
TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 
KM, ML, MR, NE, SN, TD, TG).  
Published: 
- with international search report (Art. 21(3)) 
- before the expiration of the time limit for amending the 
claims and to be republished in the event of receipt of 
amendments (Rule 48.2(h)) 
- upon request of the applicant, before the expiration of the 
time limit referred to in Article 2](2)(a) 
(88) Date of publication of the international search report: 
24 September 2020 (24.09.2020)