Previous addresses (P2PK) and Taproot addresses (P2TR) have 100% of their public keys uncovered.
Migrating the funds to safe addresses would take roughly 157 days of steady processing.
Bitcoin at the moment has 16,039,132 public keys uncovered on the chain to potential assaults with quantum computer systems, based on information from an on-chain evaluation platform developed by the bitcoiner programmer recognized in X as Depraved.
This quantity of public keys corresponds to about 6,920,868 BTC (34.58% of the community’s complete provide), equal to nearly USD 500,000 million.
An uncovered public secret’s one which grew to become seen on the blockchain after its proprietor carried out a transaction or by the design of the kind of tackle he makes use of.
That’s related to the post-quantum debate as a result of Shor’s algorithm, executable on a sufficiently highly effective quantum pc, might in idea use that public key to derive the corresponding non-public key and entry the funds. With out a seen public key, such an assault just isn’t potential.
Moreover, this publicity is necessary even immediately, earlier than there’s quantum {hardware} able to making the most of it. Because the ANSSI and different safety businesses warn, there’s a observe generally known as «harvest now, decrypt later» (harvest now, decipher later).
With this method, malicious actors can Seize and retailer these uncovered public keys immediately to attempt to derive the corresponding non-public keys sooner or later, once they have a sufficiently highly effective quantum pc. Which means funds at addresses with uncovered keys may very well be being harvested now, though the assault can’t be executed but.
Essentially the most uncovered kinds of administration
The breakdown by tackle sort reveals vital variations within the stage of publicity. The P2PK (Public Key Cost) addresses, comparable to the Satoshi period and the oldest on the community, They’ve 100% of their 1,716,320 BTC uncovered.
Subsequent, P2TR (Taproot Cost in Root) addresses, the Taproot format launched in 2021, Additionally they have 100% of their 205,581 BTC uncoveredsince by design they publish the general public key straight on the chain.
In different codecs, the publicity is partial: P2WSH (Cost to Witness Script Hash) reveals 50.46% of its funds uncovered; P2SH (Cost to Script Hash) 32.14%; P2PKH (Cost to Public Key Hash) 25.71%; and P2WPKH (Cost to Witness Public Key Hash) 22.71%.
Simply because a secret’s uncovered doesn’t suggest funds are in danger immediately. The quantum assault that would make the most of that publicity requires {hardware} that does not but exist.
Lastly, what Depraved’s information does illustrate is the dimensions of the migration problem: shifting all these funds to addresses with unexposed keys would take roughly 157 days of steady community processingas estimated by the instrument. This information coincides with earlier Circle estimates reported by CriptoNoticias, which calculated an identical time-frame emigrate all weak UTXOs (unspent transaction outputs) from Bitcoin.
