What exactly is Blockchain?

Related questions

1. How does Blockchain help business?
2. Does all Cryptocurrency use Blockchain?
3. How many Bitcoins will ever be created?
4. Can I change the world?
5. Is Bitcoin same as Cryptocurrency?
6. What is Blockchain in real life?
7. Who owns the Blockchain?
8. What does Satoshi Nakamoto mean?
9. What are Blockchain companies?
10. What is Blockchain used for?

Tags

1. #meanings
2. #given
3. #famously
4. #things
5. #database
6. #bitcoin
7. #jigsaw
8. #required
9. #totally
10. #puzzle
11. #implemented
12. #doesn
13. #exist
14. #three
15. #blockchain
16. #several
17. #parts
18. #different
19. #inefficient