An ambulance rushes Chen Xinyi to a hospital after she and two other missing children were found on Feb 19, 2016 in Zhejiang province. [Photo by Shen Zhicheng / For China Daily]

Enabled by a shared ledger of a blockchain Tencent has built, anxious parents only need to register information on their missing child once and the information will be shared instantly via different child-finding platforms that are connected by this blockchain, news portal sohu.com reported on May 25.

Tencent has even launched a blockchain solution product called TrustSQL, which the tech giant hopes will improve efficiency and reduce risks in various sectors, including the finance and sharing economy.