Bittensor Wallet Adds Post-Quantum Signature Options
The update lets users opt into three post-quantum signing schemes for coldkey and hotkey functions without changing account addresses.
Updated on Nov. 8, 2026 in Quantum Computing
Bittensor has launched a wallet that supports three post-quantum signature options: ML-DSA-65, Falcon-512 and Falcon-1024. Users can optionally rotate signing keys without changing their account addresses, balances or stakes.
Why it matters
Post-quantum signatures are designed to resist attacks from future quantum computers that could break currently used digital signature schemes. The wallet's optional rotation model lets existing users adopt the new cryptography without moving funds or changing their mnemonic phrase.
The wallet supports ML-DSA-65, Falcon-512 and Falcon-1024 for coldkey and hotkey functions including TAO transfers, staking and validator-weight settings. ML-DSA-65 has been standardized by the National Institute of Standards and Technology, while the stub does not report adoption metrics for the new options.
The players
Bittensor
Bittensor is a decentralized machine-learning network that uses its native TAO token to incentivize compute and model contributions.
National Institute of Standards and Technology
The National Institute of Standards and Technology is a U.S. federal agency that develops measurement standards, including the post-quantum cryptography standards that include ML-DSA.
The details
Key rotation is optional and requires a one-time registration with a permanent 0.2 TAO lock. After a signed transaction is recorded on-chain, the wallet switches to a new signing key, and the previous key can no longer authorize transactions for that account. Users do not need to change their mnemonic phrase, and existing wallets remain usable.
Timeline
Article on the post-quantum wallet launch published November 8, 2026
The Tech Race
The wallet's adoption of NIST-standardized ML-DSA-65 alongside Falcon signatures follows the post-quantum migration path that NIST began when it finalized its first post-quantum cryptography standards. Shipping these schemes in a live decentralized network positions Bittensor among early adopters moving the standards from specification into production use.
Wallet users who do nothing keep their existing setup, since rotation is optional and wallets without it require no registration. Users who opt in must pay a one-time 0.2 TAO lock and can rotate keys without changing their mnemonic phrase or moving funds.
The takeaway
Post-quantum protection can be added to an existing crypto wallet without forcing users to abandon their accounts or seed phrases. Users weighing the optional 0.2 TAO registration should compare it against the value of protecting their keys against future quantum attacks.
Further reading
For more on the cryptographic threats driving this shift, explore our Quantum Computing coverage.
Source note: This article includes information reported by TokenPost.
