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Blockchains are kept in "peer-to-peer" networks that are continually updated and kept in synchronization. It would require huge amounts of computing power to access every instance of a certain blockchain and alter all its blocks at the same time. A network of tech-savvy users known as miners pour their computing power into maintaining the blockchain and verifying its transactions, ensuring that someone cannot spend the same coin again after paying for something with it.

Bilateral relations between the two countries are running at a high level, and the two countries have obtained rich fruit in jointly building the Belt and Road Initiative and have taken the lead in building a community with a shared future for mankind, Xi said.

Blair has called for the UK to hold a second referendum to give the British people the chance to reverse their 2016 decision to leave the European Union.

Blade Battery, a blade-shaped product, has been launched under its newly established sub-brand FinDreams. The sub-brand specializes in core components for clean EVs. The product belongs to the lithium-ion phosphate (LFP) battery family. However, unlike the traditional LFP battery, it has advantages like long life and high mileage.

Both countries should expand cultural and people-to-people exchanges and local cooperation to boost neighborly friendship, said Xi, who also stressed the importance of improving security cooperation to fight the "three evil forces" of terrorism, extremism and separatism and organized crime across the border.