> For the complete documentation index, see [llms.txt](https://qanchain.gitbook.io/qan/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://qanchain.gitbook.io/qan/faq.md).

# FAQ

#### **What is a Quantum Cryptographic Chain?**

A quantum cryptographic chain is a blockchain that uses post-quantum cryptographic algorithms designed to be resistant to attacks from both classical and quantum computers. QAN is the first quantum-proof blockchain, ensuring long-term security as quantum computing evolves.

#### **Is QAN an EVM-Compatible Chain?**

Yes, QAN is EVM (Ethereum Virtual Machine) compatible. By combining 70% of EVM with 30% custom quantum-resistant code written in C, QAN has created a super chain that is both EVM-friendly and quantum-proof.

#### **Is QAN a Fast Blockchain?**

Absolutely. By integrating 30% quantum cryptographic codes, QAN achieves a significant increase in transaction speed—up to 2000% faster than traditional blockchains. This makes QAN highly efficient and scalable for a wide range of applications.

#### **Is QAN a Layer 1 or Layer 2 Blockchain?**

QAN is a **Layer 1 blockchain**, meaning it operates as a foundational blockchain network with its own consensus mechanism and infrastructure.

#### **Can Quantum Cryptographic Codes Be Added to Other Blockchains?**

No, quantum cryptographic codes cannot be simply added to existing blockchains. To implement quantum-resistant features, a blockchain must start from the genesis block. For existing chains, a hard fork would be required to integrate such advanced cryptographic measures.

#### **Why is Quantum Resistance Important?**

Quantum resistance ensures that the blockchain remains secure against the immense computational power of quantum computers, which could potentially break traditional cryptographic algorithms. QAN’s quantum-proof design future-proofs the platform against these emerging threats.

#### **What Makes QAN Unique?**

QAN stands out as the first quantum-proof blockchain, combining EVM compatibility, high-speed transactions, and quantum-resistant security. Its innovative architecture ensures scalability, energy efficiency, and long-term relevance in the quantum era.

#### **How Does QAN Achieve Energy Efficiency?**

QAN’s consensus mechanism and quantum-resistant algorithms are designed to minimize energy consumption, making it a sustainable and eco-friendly blockchain solution.

#### **What Industries Can Benefit from QAN?**

QAN’s quantum-proof blockchain is ideal for industries such as finance, healthcare, supply chain, gaming, NFTs, and government services, where security, scalability, and efficiency are critical.

#### **How Can Developers Get Started with QAN?**

Developers can access QAN’s comprehensive developer tools, including SDKs, APIs, and documentation, to build and deploy quantum-resistant smart contracts and decentralized applications (dApps).

#### **Is QAN Open Source?**

Yes, QAN is committed to open-source development, allowing developers and the community to contribute to its growth and innovation.

#### **What is QAN’s Vision for the Future?**

QAN aims to lead the blockchain industry into the quantum era by providing a secure, scalable, and future-proof platform that empowers individuals, businesses, and governments to thrive in a decentralized world.