Grayscale research head Zach Pandl states that Bitcoin’s greatest quantum threat is not technical but social. According to Pandl, the community must agree on how to handle vulnerable dormant coins, a process historically fraught with debate. While no immediate quantum threat exists, Pandl urges blockchains to begin adopting post-quantum cryptography, a step already being explored by Solana, XRP Ledger, and Ethereum.
The challenge of securing Bitcoin from future quantum computers may be more social than technical. This perspective comes from Grayscale head of research Zach Pandl, who suggested reaching community consensus is the primary hurdle.
According to Pandl, Bitcoin has lower technical risk than other cryptocurrencies due to its UTXO model and proof-of-work consensus. However, roughly 1.7 million BTC, including an estimated 1 million BTC belonging to Satoshi Nakamoto worth about $68 billion, remains in vulnerable early addresses.
The community faces three main options for these dormant coins. They can burn the coins, limit the spending rate from vulnerable addresses, or take no action.
“All are conceptually doable, but the challenge is reaching a decision, and the Bitcoin community has a history of contentious debates over protocol changes,” Pandl wrote. He referenced last year’s dispute over Bitcoin Ordinals, technology for inscribing data onto satoshis, as an example of such contention.
Pandl cautioned it was time to accelerate efforts toward post-quantum cryptography. Solana and the XRP Ledger are already experimenting with these solutions, while the Ethereum Foundation released its roadmap in February.
“In our view, there is no security threat to public blockchains from quantum computers today,” Pandl concluded. He stated investors should not fret now but emphasized the need to prepare for a post-quantum future.
