LatticeScan

Registry

Claim your coins before a quantum computer can

The quantum threat to Bitcoin and Ethereum is that a private key can one day be worked out from a public key. On that day a thief and the true owner can both sign for the same coins, and nothing on-chain says which one is the owner. This registry settles that argument in advance. While only you control the key, you sign a short statement naming a post-quantum key of your own. We verify the signature, record the statement, and stamp it into Bitcoin. Nothing moves. What you get is a dated, unforgeable claim made before anyone else could make one.

Commitments

0

Addresses

0

Bitcoin

0

Ethereum

0

Register a commitment

Three steps, about two minutes, no transaction and no fee. Works with any wallet that can sign a message.

Public key only. A private key is refused, and you should never paste one anywhere. To make a key: openssl genpkey -algorithm ML-DSA-65 -out pq.key then openssl pkey -in pq.key -pubout (OpenSSL 3.5 or later).

Look up an address

Anyone can check whether an address has a commitment on record, and re-verify the signature and the Bitcoin timestamp themselves.

What the signature proves. A Bitcoin signed message or an Ethereum personal_sign signature can only be made with the private key of the address. We recover the public key from the signature and derive the address from it; if they match, the statement was made by whoever controls the coins. Only the public half of your post-quantum key is ever sent to us.

What the timestamp proves. Each record is hashed and submitted to OpenTimestamps, which commits it into a Bitcoin block. Once confirmed, the proof shows the claim existed before that block, and any Bitcoin node can check it with no trust in us. The record cannot be backdated after the fact, which is the whole point.

What it does not do. It does not move your coins, protect them, or change how the chain works. It is evidence. When a chain adopts a post-quantum migration path, or when a dispute reaches a custodian, an exchange or a court, the holder with the earliest verified commitment has the stronger claim. Pair it with Canary to know the moment your key is exposed, and see Exposure to check whether it already is.

Formats. Bitcoin: legacy, SegWit and wrapped SegWit addresses with the standard signed-message scheme. Taproot needs BIP-322 and is next. Ethereum: any externally owned account with EIP-191. Post-quantum key: ML-DSA-65 (FIPS 204). Everything is readable at /api/registry?address=…, and the statement format is part of the Proof of Quantum Solvency specification.