Exposure check
Is your money behind a public key?
If the math behind wallet signatures weakens, through quantum computers or AI-accelerated math, coins behind a public key are the first within reach. Paste a wallet to see how much sits where, and the one calm step that fits.
What the answer can be
Key public
The public key is on chain, or is the address itself.
Disclosure not observed
No public-key disclosure was found in the checked records. Other signatures or networks can still expose it.
No key
Contracts and program-derived addresses do not have an ordinary signing key of their own. Their controlling accounts may still have keys.
Why the key matters
Bitcoin, Ethereum and Solana sign with elliptic curves (ECDSA and Ed25519). Their safety rests on one assumption: that nobody can work back from a public key to its private key. If that assumption weakens, a key that is already public is the first one within reach.
What we keep
Addresses and results are not saved or logged by this check. Input is sent in the request body, never in our links. Chain providers receive server-side lookups. Only an anonymous application rate-limit counter is stored. No wallet connects and no signature is requested.
Dollars, from the chain
Balances use exact network units. USD estimates use Chainlink feeds on Ethereum, including USDC and USDT instead of assuming a dollar peg. Missing or stale prices are excluded. Only the listed coins and major stablecoins are counted; other tokens and NFTs are outside this check.