Bittensor has launched a quantum-resistant wallet that supports three post-quantum signature schemes: ML-DSA-65, Falcon-512, and Falcon-1024. ML-DSA-65 has been standardized by the National Institute of Standards and Technology (NIST). The wallet supports both cold and hot keys, covering operations such as TAO transfers, staking, and validator weight settings.
The wallet offers an optional automatic key rotation feature. Once a user-signed transaction is recorded on-chain, the wallet will automatically switch to the new signing key. The old key can no longer authorize transactions for that account. The account address, balance, and staking remain unchanged, and there is no need to change the mnemonic phrase. Quantum-resistant wallets without key rotation do not require registration, while those with key rotation enabled require registration and a one-time permanent lock of 0.2 TAO. Existing wallet users can migrate funds and staking to the new account via transfer or cold key swap.
