Claak, Inc.
Every wallet and shielded pool in use today rests on ECDSA, Ed25519, or elliptic-curve proofs. A large enough quantum computer breaks all three. Claak builds the replacements, on one post-quantum account core.
Three products, one account core. Each card says where it actually is, not where it is going.
A self-custodial wallet whose funds are controlled by a post-quantum key, checked on-chain by a smart account.
For: Anyone holding crypto they expect to still hold in ten years.
A browser extension, live on Base mainnet since June 2026 and Arbitrum One since July: post-quantum accounts, swaps and dApp connections work with real funds today, and the contract addresses are public. Solana and Bitcoin are testnet only. The contracts are unaudited, so start small.
About Claak WalletA hash-based shielded pool: veil, transfer, and unveil balances without a trusted setup and without elliptic-curve assumptions.
For: Holders and protocols that need payment privacy that survives a quantum adversary.
Built and in testing. Proof system and the veil/transfer/unveil flow run end to end; not open to the public yet.
Visit TiraiA post-quantum multi-sig for teams and treasuries, built on the same account core as the wallet.
For: Teams and treasuries whose multi-sig today rests entirely on classical keys.
Design work only. The account core it would build on is live; the multi-sig authorizer is not built.
The products are not a portfolio of unrelated bets. They share a post-quantum smart account: an immutable account and factory, a generic executor, and a swappable authorizer.
Funds are controlled by a post-quantum key, checked on-chain for every operation. A keccak-based SPHINCS+ variant on Base and Arbitrum, Falcon on Solana, chosen per chain by what that chain can actually verify. Both are the designs behind NIST's hash-based and lattice signature standards, tuned for what a chain can afford rather than run as the certified parameter sets.
A classical key still pays gas and carries the transaction to the chain. It has no spending power. Stealing it does not move funds.
Accounts are post-quantum from creation. There is no migration path from a classical account, because a migration window is itself the vulnerability.
