Starknet launches strkBTC to bring ZK-powered shielded bitcoin to its Layer 2 network

Starknet, an Ethereum Layer 2 network, has launched strkBTC, a new Bitcoin-based asset designed to offer private balances and confidential transfers. Utilizing Starknet's zero-knowledge cryptography, strkBTC acts as a shielded Bitcoin wrapper, enhancing privacy for transactions on the Starknet network. This initiative aims to address growing concerns about privacy for Bitcoin holders, especially with the rise of AI tools that can link public wallet addresses to individuals. The strkBTC system includes compliance-ready auditability and allows for re-anonymization to fresh Bitcoin addresses. Future upgrades plan to introduce confidential DeFi features like shielded lending and trading. The technical wrapper allows users and institutions to protect transaction histories while maintaining compliance with regulatory requirements, with viewing keys available for auditors and users. This aims to enable use cases such as private payroll and sensitive payments, making Bitcoin function as "private onchain cash." The launch is part of Starknet's broader strategy to activate Bitcoin as a productive financial asset, with future roadmap items including quantum-resistant cryptography and integration with BitVM.

(Source：The Block)