Interesting paper on how quantum computing could help to provide a new POW for blockchain. If this is technically feasible is answered with

“Our estimates predict that a noisy superconducting quantum computer with more than 30 qubits would reach the level of a minimal viable quantum advantage and start outperforming in mining a classical computer with a quantum simulator.”.

But the advantage is the problems that can be solved. E.g. instead of guessing numbers and brute forcing to solve a riddle, the riddle could be more complex like “qPoW can also leverage other types of computationally hard problems, such as approximation of many-body Hamiltonian states, boson sampling, combinatorics on graphs, etc.” 💡

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