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#TBC# According to the search results, **TBC Public Chain (Turing Bit Chain) has achieved Open Source**, but the open source process is advancing in phases, and some components may still have limitations. Here is a summary of key information:
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✅ 1. **Open Source Status and Timeline**
- **Completion of Open Source in Q1 2024**:
The official announcement clearly states that the Layer2 Alpha version of TBC will be deployed in December 2023, and it is planned to complete the Open Source in **the first quarter of 2024**. This information has been confirmed through multiple channels.
- **Code is Open Source**：
Users can access open source platforms like GitHub to view the TBC codebase, including contributor records and core protocols (such as the UTXO smart contract engine). Community members have pointed out that those questioning non-open source developers "can check on the Black Cat official website and CK audit" for verification.
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⚠️ 2. **Open Source Restrictions of Some Components**
- **Phase-wise Open Source of Node Software**：
Although the main chain code has been Open Source, the **testing framework and development tools** of the high-performance node software were in a limited open state, requiring developers to "contact for one-on-one cooperation" to obtain access. The official statement indicates that they will gradually open up to the public "after improving the open source protocol."
- **Compliance and Intellectual Property Protection**:
TBC emphasizes that the node software is protected by intellectual property rights and manages early mining through KYC mechanisms, which may affect the fully decentralized Open Source process.
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🔧 3. **The Practice of Open Source in Technology**
- **Developer Ecosystem Construction**:
TBC actively promotes developer participation, such as the "Asia-Pacific Hackathon" starting in 2025, focusing on Bit Layer 2 application innovation, indicating that its Open Source ecosystem has entered the practical stage.
- **Smart Contracts and Protocol Open Source**：
Core innovations such as **UTXO model Turing-complete smart contracts** (TuringContract), **T11 atomic cross-chain protocol**, and other technical documents and contract codes are publicly accessible, supporting third-party development of DeFi, NFT, and other projects.
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💎 Summary
- ✅ **Open Source**: The TBC main chain code will be open sourced in the first quarter of 2024, available on GitHub, and will accept community audits.
- 🔧 **Partial Gradual Opening**: Components such as node toolchains will be gradually opened as planned, currently requiring compliance applications.
- 🌱 **Ecological Open Source**: Promoting open source collaboration through hackathons and global developer programs.
It is recommended to directly visit the [TBC official GitHub repository] or the community forum for the latest code updates. For verification of audit reports, you can refer to the public documents of third-party organizations (such as the official website of Black Cat, CK Audit).