Nubit is building Bitcoin Thunderbolt, a Bitcoin-native soft fork and boosting network that improves scalability, programmability, and asset issuance on Bitcoin through technologies such as UTXO bundling, OP_CAT, and formally verified on-chain/off-chain integration, while remaining fully native to Bitcoin’s consensus and security model.
On July 21, 2025, 071labs announced a strategic investment in Nubit to support expansion of Bitcoin’s scalability and usability. The raise amount and valuation were not publicly disclosed. The investment aims to accelerate Korean market adoption of Thunderbolt, which had already processed over 4 million mainnet transactions and more than 5,000 daily active users by the time of the announcement.