Quantum Blockchains Could Act Like Time Machines

Quantum blockchain systems could resist hacks by quantum computersImage: iStockphoto

A newly proposed "quantum blockchain" could lead to blockchain systems impervious from quantum-computer hacking, a new study finds.

This new quantum blockchain can be interpreted as influencing its own past, making it behave like a time machine, the researchers add.

A blockchain is a kind of database that holds records about the past, such as a history of financial or other transactions, that every...

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