Nick Murray, co-founder and chief technology officer at Hong Kong start-up PassKit, explains how transactions are recorded and validated in the company's own blockchain platform, shown on the screen behind him. Photo: Bien Perez

The three key things you need to know about blockchain technology

Blockchain is a form of distributed ledger technology that burst onto the scene when cryptocurrency bitcoin was introduced

Topic |   Explainers: Technology

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Nick Murray, co-founder and chief technology officer at Hong Kong start-up PassKit, explains how transactions are recorded and validated in the company's own blockchain platform, shown on the screen behind him. Photo: Bien Perez
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