Nearly 10% of Bitcoin Supply Exposed to Quantum-Related Risk, Says Glassnode

Data analytics firm Glassnode reports that nearly 10% of the total supply of Bitcoin is considered structurally exposed, as certain transaction formats reveal public keys by design, a factor linked to emerging quantum computing concerns.

Overall, this exposure is estimated at around 1.92 million BTC, spread across multiple output types. These include early Satoshi-era Pay-to-Public-Key transactions, legacy Pay-to-Multisig structures, and more recent Pay-to-Taproot addresses.

Looking at the breakdown, about 1.1 million BTC is linked to coins associated with Satoshi Nakamoto, while roughly 620,000 BTC comes from other early-era holdings. In addition, approximately 200,000 BTC is held in Taproot-based outputs.

Source: Glassnode