Ark and Unchained say about one-third of the Bitcoin supply remains exposed to future quantum threats, though the risk is still years away.
US investment manager Ark Invest claims that the lion’s share of the Bitcoin supply is already safe from the quantum computing breakthrough, leaving ample warning signals for builders to quantum-proof the rest of the supply.
Around 65.4% of the Bitcoin (BTC) supply is not vulnerable to the threat of a quantum computing breakthrough, but about 34.6% of the BTC supply remains at risk, according to a Wednesday white paper published by Ark Invest and Bitcoin-focused financial services company Unchained.
This includes around 5 million BTC, or 25% of the total supply, assumed migratable due to address re-use, and 1.7 million BTC, or 8.6% of the supply, assumed lost in P2PK (Pay To Public Key) addresses, the earliest form of transaction script on the Bitcoin blockchain, which locked funds directly to public keys. Another 200,000 BTC (around 1%) is assumed to be migratable due to the address type P2TR (Pay To Taproot).
