What is Blockchain in real life?

Related questions

1. What is the need of Blockchain?
2. Why is Blockchain secure?
3. Do all Cryptocurrencies use Blockchain?
4. What does Satoshi Nakamoto mean?
5. What is the use of Blockchain?
6. Why do we need Blockchain?
7. Does Blockchain change the world?
8. What is the main purpose of Blockchain?
9. What is Blockchain coded in?
10. Can Bitcoin exist without Blockchain?

Tags

1. #secure
2. #without
3. #chain
4. #important
5. #pointers
6. #immutable
7. #linked
8. #lists
9. #technology
10. #contains
11. #supervision
12. #block
13. #where
14. #structures
15. #cryptographically
16. #blockchain
17. #blocks
18. #value
19. #central