US 12,293,104 B2
Cross-blockchain data migration
Pan Liu, Shenzhen (CN)
Assigned to Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Guangdong (CN)
Filed on Apr. 7, 2022, as Appl. No. 17/715,746.
Application 17/715,746 is a continuation of application No. PCT/CN2020/128098, filed on Nov. 11, 2020.
Claims priority of application No. 202010179351.9 (CN), filed on Mar. 13, 2020.
Prior Publication US 2022/0229577 A1, Jul. 21, 2022
Int. Cl. G06F 3/06 (2006.01); H04L 9/00 (2022.01)
CPC G06F 3/0647 (2013.01) [G06F 3/0673 (2013.01); H04L 9/50 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A cross-blockchain data migration method, comprising:
obtaining, by processing circuitry of a first node in a first blockchain network, from a first blockchain in the first blockchain network, first service data information corresponding to a first data structure mode stored in a first block in the first blockchain;
obtaining a second data structure mode associated with a second block in a second blockchain corresponding to a second blockchain network based on a second node in the second blockchain network having a network connection relationship with the first node of the first blockchain network, and converting the first service data information to second service data information corresponding to the second data structure mode;
establishing a hash mapping relationship between a plurality of first hash values associated with the first service data information and a plurality of second hash values associated with the second service data information in the first blockchain, each of the plurality of first hash values being mapped with a respective one of the plurality of second hash values; and
migrating the second service data information to the second node in the second blockchain network based on the hash mapping relationship.