Is Blockchain a technology or concept?

Related questions

1. What companies are using Blockchain technology?
2. What is Blockchain technology in simple words?
3. Is Blockchain a database?
4. What is unique about Blockchain technology?
5. What can block chain be used for?
6. What are benefits of Blockchain?
7. What companies use Blockchain technology?
8. What is meant by block chain technology?
9. What is IBM Blockchain technology?
10. In which programming language Blockchain is written?

Tags

1. #maintains
2. #across
3. #blockchain
4. #bitcoin
5. #users
6. #distributed
7. #network
8. #ledger
9. #allows
10. #transactions
11. #technology
12. #example
13. #underlying
14. #recording
15. #transaction