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Bool Network functions as a witness bridge, requiring only a signature on the target chain to complete the cross-chain transaction at minimal cost. Its core advantage is that nearly all operations occur within a Trusted Execution Environment (TEE), ensuring that external parties cannot see what is happening. Each node is unaware of the identity of the witnesses or whether they have been selected, which fundamentally prevents collusion and greatly increases the cost of external attacks.

As the demand for privacy protection grows, TEE technology has once again become a focal point. TEE provides a secure execution environment independent of the main system, protecting sensitive data and code. Multiple blockchain projects, such as Flashbots, Taiko, and Scroll, are exploring TEE applications to achieve private transactions, decentralized block building, and multi-proof systems. While TEE offers advantages in security and privacy, it still faces centralization risks. In the future, it may need to be compatible with more hardware vendors and set node ratios to reduce reliance on a single supplier, thereby further enhancing decentralization.

This article will delve into multiple innovative Bitcoin Layer2 projects. Through detailed analysis of their technical principles, team backgrounds, funding situations, and development roadmaps, we will understand how they drive innovation and development within the Bitcoin ecosystem.