#比特币重复使用地址持有433万枚btc
⚠️ 4.33 million BTC $BTC have a public-key exposure issue, bringing quantum-computing risks back into focus
Glassnode data shows that the amount of BTC held at reused Bitcoin addresses has risen to about 4.33 million, equivalent to 21.5% of the circulating supply. This figure grew by about 14.2% over the past year.
More notably, when reused addresses are combined with certain legacy address types, the total amount of BTC with exposed public keys reaches about 6.26 million, or 31.2% of the total supply.
Why does this matter?
A Bitcoin address’s associated public key may be exposed when funds are spent. Reusing an address keeps its public key visible, so these assets could face greater risk in the future if quantum computers become powerful enough to crack the cryptography.
But don’t misread this: a visible public key does not mean the private key has been cracked, nor does it mean these BTC can be stolen directly right now.
What really matters is how the Bitcoin ecosystem advances post-quantum cryptographic solutions, and whether migrating assets from old addresses will become a long-term issue.
⚠️ 4.33 million BTC $BTC have a public-key exposure issue, bringing quantum-computing risks back into focus
Glassnode data shows that the amount of BTC held at reused Bitcoin addresses has risen to about 4.33 million, equivalent to 21.5% of the circulating supply. This figure grew by about 14.2% over the past year.
More notably, when reused addresses are combined with certain legacy address types, the total amount of BTC with exposed public keys reaches about 6.26 million, or 31.2% of the total supply.
Why does this matter?
A Bitcoin address’s associated public key may be exposed when funds are spent. Reusing an address keeps its public key visible, so these assets could face greater risk in the future if quantum computers become powerful enough to crack the cryptography.
But don’t misread this: a visible public key does not mean the private key has been cracked, nor does it mean these BTC can be stolen directly right now.
What really matters is how the Bitcoin ecosystem advances post-quantum cryptographic solutions, and whether migrating assets from old addresses will become a long-term issue.