Analyze your Bitcoin, Ethereum, BNB Chain, or Solana wallet for post-quantum migration urgency — using live public blockchain data.
This tool reads publicly available blockchain data to estimate post-quantum migration urgency. It does not access private keys, modify wallets, or store any input. Scores reflect public-key exposure and balance factors — not real-time quantum computing capability, which does not yet threaten elliptic-curve cryptography as of 2026.
Different blockchains have different cryptographic exposure models
Bitcoin addresses store a hash of the public key. Your raw public key is only revealed when you spend from an address — it appears in the transaction input. If you have never sent from an address, your key remains hidden.
Ethereum addresses are derived from the public key via Keccak-256 hashing. Your public key is exposed when you sign your first outgoing transaction. We check transaction nonce: nonce > 0 means the key is on-chain.
BNB Chain is EVM-compatible and uses identical cryptography to Ethereum. Address = Keccak-256(pubkey), and the public key is exposed on first outgoing transaction. Analysis uses the same nonce-based method.
Solana wallet addresses are the Ed25519 public key directly — no hash layer. Every Solana address has its public key permanently visible, regardless of transaction history. Urgency is assessed by balance size.
The cryptographic foundations of today's blockchains were not designed to withstand quantum computing
Paste your Solana wallet address into the checker above and run a scan. Every standard Solana wallet today signs with Ed25519 (EdDSA), the same elliptic-curve family that a large enough quantum computer running Shor's algorithm could break — so on Solana specifically, "quantum-safe" currently means moving to a wallet that signs with a post-quantum algorithm like ML-DSA (Dilithium) instead, such as the AntiQuantum Wallet.
Yes, in the same way as most blockchains: Bitcoin wallets use ECDSA signatures, which rely on the elliptic curve discrete logarithm problem — a problem Shor's algorithm solves efficiently on a sufficiently powerful quantum computer. Today's quantum hardware isn't there yet, but any Bitcoin address that has ever revealed its public key on-chain (i.e., has sent a transaction) is the first to be at risk once it is. Addresses that have only received funds and never spent from them are comparatively safer for now.
A wallet is quantum-vulnerable if its private key can be derived from information that's already public — most commonly its public key, once exposed on-chain. Classical signature schemes (ECDSA, EdDSA) are built on math problems (discrete logarithms over elliptic curves) that Shor's algorithm breaks in polynomial time on a large quantum computer. Post-quantum signature schemes like ML-DSA (Dilithium) and SLH-DSA (SPHINCS+) are built on different math (lattice and hash-based problems) that Shor's algorithm doesn't help with.
Yes. Scanning a Bitcoin, Ethereum, BNB Chain, or Solana wallet address for quantum exposure is completely free, with a fair daily usage limit per visitor to keep the tool available for everyone.
The checker only reads public, already-on-chain blockchain data to compute your risk score — it never asks for or has access to a private key or seed phrase. See our Security page for details on what is and isn't stored.
The AntiQuantum Wallet implements ML-DSA-65 + Ed25519 hybrid signing — quantum-resistant by design from day one.