why do you need blockchain for this project?
A blockchain is a distributed database that continuously grows with a record of all of the transactions that have occurred with a given cryptocurrency.
This database is often referred to as a ledger because the data contains a large list of transactions that have taken place.
In FreelaBit, these transactions are packaged together into 'blocks' every 2 minutes (on average) and all miners and nodes on the network have copies of these blocks.