Is Bitcoin a single Blockchain?

Related questions

1. Will Blockchain run out of space?
2. What is a Bitcoin full node?
3. Do Bitcoin nodes make money?
4. Can you make money running a full Bitcoin node?
5. What will happen when last Bitcoin is mined?
6. Can I keep Bitcoin in Coinbase?
7. What's the difference between Bitcoin and Cryptocurrency?
8. How long does it take to mine Bitcoin?
9. What's a bitcoin node?
10. How much space does Bitcoin core need?

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