Bittensor launched a quantum-resistant wallet that supports post-quantum signatures and automatic key rotation

The decentralized machine learning network Bittensor announced on Twitter the launch of a quantum-resistant wallet, supporting three post-quantum signature schemes: ML-DSA-65, Falcon-512, and Falcon-1024, with ML-DSA-65 having been standardized by the National Institute of Standards and Technology (NIST). The quantum-resistant wallet supports both cold keys and hot keys, covering operations such as TAO transfers, staking, and validator weight settings.

This update also provides an optional automatic key rotation feature: once a user-signed transaction is recorded on-chain, the wallet will automatically switch to a new signing key, and the old key will 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 each time. The quantum-resistant wallet without key rotation does not require registration, while enabling key rotation requires registration and a one-time permanent lock of 0.2 TAO. Existing wallets can continue to be used, and users can migrate existing funds and stakes to the new account through transfers or cold key exchanges.