Blockchain isn’t used just for cryptocurrencies.

Blockchain in its effective design intends to keep data from being altered by obtaining distributed consensus, basically provide immutability by having people agree upon it.

A blockchain has numerous use cases.

Ideally, a blockchain would be helpful in situations where:

Multiple entities are involved
Security requirement is paramount
Records are transactional in nature
Consensus is required among entities
Privacy is a concern
Solving Byzantine fault tolerance
Sanctity of data is of great importance
Consensus among distributed entities
High value transactions
Low number of transactions
Decentralization is necessary or required
History of transactions are important
Most blockchains are often unstructured and crude in their implementation which makes databases a much more effective option for usage at scale.

Blockchain can be considered to be a variation of a hashtree or merkle trees, a way of ensuring authenticity of data.

To summarise, blockchain isn’t a cryptocurrency or its use cases related just to cryptocurrencies. There is a whole wide opportunity to be explored.

Here’s a list of blockchain use cases by industry.
![QuickScreencapture_20180128-163229.png](https://res.cloudinary.com/hpiynhbhq/image/upload/v1517137514/er92ycxttjcaoc0y4xwr.png)
[Credit](www.google.com)

I hope this was helpful.