QBUNKER
Q-Day scanner · Solana
read-only scan · free seal · no transactions

Is your wallet quantum-exposed?

Paste any Solana address. We read the chain and show what a future quantum computer could take. Then seal proof that it’s yours, in a form that computer can’t fake.

Read-only. Pasting an address never asks for a signature. Connect is Phantom only, and only when you tap it.

Sector Solana mainnetThreat Shor’s algorithmCountermeasure SHA-256 one-time keys
LIVE · hash-based signature, made and checked in this tab
forging 256 one-time keys · 0%
≈ 275,000 SHA-256 hashes. A random demo identity, not your wallet.
The short version
01

Q-Day is coming

Q-Day is the day a quantum computer can break the keys that guard today’s crypto wallets. Nobody knows when. Big labs are racing toward it.

02

Your address is your public key

On Solana, the address you share is your Ed25519 public key. A large quantum computer could work back from it to your private key. That’s true for every Solana wallet.

03

Hash-based keys survive

Some signatures use nothing but a hash function (SHA-256). Quantum computers barely dent those. We build you a set of them from your wallet, in your browser.

04

Seal now, prove later

You sign one claim, “this wallet and these holdings are mine,” with both kinds of key. If Ed25519 ever falls, your old wallet signatures can be faked. Your hash-based seal can’t.

Q-Day clock · public figures only · checked 2026-10-09

How close is a quantum computer that can crack a wallet?

1001K10K100K1M
built so far estimated to break a 256-bit curve key
6,100qubits · Largest qubit array ever assembled (neutral atoms)Caltech, Sep 2025. An array with record coherence, not yet a full gate-model computer.2,310qubits · Largest full gate-model machine reportedMatriQ (Hangzhou), Jul 2026. Company announcement and press; no peer-reviewed paper yet.< 500,000qubits needed · Fast machine (superconducting) · minutesGoogle Quantum AI, Mar 2026. 1,200 to 1,450 logical qubits. Fewer than 500,000 physical qubits at 0.1% error rates.≈ 19,397qubits needed · Slow machine (trapped ions) · about 26 daysIACR ePrint 2026/1916, 2026. about 1,450 logical qubits. 19,397 physical qubits, 63% success per run.

The largest qubit array built so far has 6,100 qubits. The slowest published attack needs about 3.2× more, and the fast one about 82× more. Today’s machines also make far too many errors to run either. No one can honestly give you a date.

These estimates are for secp256k1, the 256-bit curve behind Bitcoin and Ethereum. Solana uses Ed25519, a 255-bit curve of the same size, and Shor's algorithm breaks both the same way.

no bunkers sealed yet
Seal streak · wallets secured
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·value sealed (at seal time)
·seals signed
·coins sealed by creators
What a seal does
  • Proves, with SHA-256 alone, that the owner of this wallet bound it to your post-quantum key at a specific time.
  • Records your holdings and the coins you created, as of a real Solana slot.
  • Gives you a public proof page anyone can re-check in their own browser.
  • Costs nothing. Two message signatures, no transaction, no SOL.
What it doesn’t do
  • It doesn’t move your funds or make your wallet quantum-proof. Solana itself still checks Ed25519.
  • It can’t stop a thief on Q-Day. It helps you prove what was yours, if the network or a court ever asks.
  • The time is our server’s record plus the Solana slot you sealed at. Seal early: the earliest seal is the strongest.
  • Without a passphrase, someone who cracks your wallet could re-create your keys and seal later. They can’t change your earlier seal.
For coin creators

Seal your coin’s birth certificate.

Launched on pump.fun? We check on-chain that your wallet is the coin’s creator and add it to your seal. Your coin page can then show a badge that links to a hash-based proof that you made it. If anyone ever fakes your old signatures, this proof still stands.

Scan my wallet
Check any bunker

Paste a wallet. Watch its seal get re-checked from scratch.