I want to invest in BTC but I do not know much about blockchain. Reading on the web is a lengthy explanation and hard to understand.
My friends told me that in order to invest in BTC I need to know about blockchain.
A blockchain (block chain) is a distributed database in which storage devices are not connected to a shared server. This database maintains an ever-growing list of ordered records called blocks. Each block contains a timestamp and a link to the previous block.
The use of encryption ensures that users can change only those parts of the block chain that they "own" in the sense that they have private keys without which writing to the file is impossible. In addition, encryption ensures that copies of the distributed block chain are synchronized across all users.