1、Bitcoin And Quantum ComputingJoin the conversation on X ARKinvest unchainedwww.ark-Published:March 11,2026Author:Dhruv Bansal,Co-Founder and CSO at UnchainedAuthor:Tom Honzik,Director of Custody Research at UnchainedAuthor:David Puell,Research Trading Analyst/Associate Portfolio Manager,Digital Asse

2、ts at ARK Invest2Bitcoin And Quantum Computing Dhruv Bansal,Tom Honzik,and David PuellTable Of ContentsIntroductionThe Basics Quantum ComputingBitcoin CryptographyQuantum Computing Capability Is A JourneyImportant Questions For InvestorsPQC Is Widely DeployedImplementing PQC In Bitcoin Will Require

3、Consensus ChangesNo Consensus Exists About Protecting Coins That Remain Vulnerable To QuantumThree ScenariosThe Road Ahead356681417181920233Bitcoin And Quantum Computing Dhruv Bansal,Tom Honzik,and David PuellIntroductionThis paper assesses whether and how advances in quantum computing(QC)pose a ris

4、k to Bitcoin.Our two central arguments are as follows:1.Quantum is a long-term risk but not an imminent threat.The community must continue to research and make plans for protecting the network as quantum computers improve.2.If quantum computing were to affect Bitcoins cryptography,the process would

5、be protracted and undertaken at meaningful cost to the attacker.Todays quantum systems lack the capabilities required to compromise Bitcoin.Meaningful breakthroughs would disrupt internet security first,triggering coordinated responses well beyond Bitcoin.In our view,quantum development will be a gr

6、adual technological progressionnot a sudden“Q-day”eventgiving markets and the Bitcoin network time to adapt.Quantum computers use qubits that can exist in superposition,enabling quantum algorithms to scale more quickly than classical algorithms.Their performance is measured by parameters like the nu