Bittensor Launches Quantum-Resistant Wallet with Post-Quantum Signatures and Automatic Key Rotation

Decentralized machine learning network Bittensor has announced the launch of a quantum-resistant wallet that supports 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 wallet supports both cold and hot keys, covering operations such as TAO transfers, staking, and validator weight settings. The 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, rendering the old key unable to authorize transactions for that account. The account address, balance, and stake remain unchanged, and there is no need to change the mnemonic phrase each time. Quantum-resistant wallets that do not enable key rotation do not require registration, while those that do enable key rotation must register and permanently lock 0.2 TAO as a one-time fee. Existing wallets can continue to be used, and users can migrate their existing funds and stakes to the new account via transfers or cold key exchanges.

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