Dear @gifty1 ,
Thank you for participating in this Mini Crypto program, I really appreciate your good intentions and your efforts in understanding our practice this time.

• There are 3 important parts in blockchain, but you didn't mention them.

• Private blockchains will be more difficult to hack because Private blockchains have less capacity and only a few people can access them, and hackers must know digital signatures to be able to hack this type of blockchain.

• In Demo blockchain, the first page that will appear is the data and hash section, but because blockchain has blocks, each block has a related nonce, data, Previous Hash, and hash.

• Use markdownstyle in your writing, you can make your writing more presentable and attractive.

• You didn't mention how a block works and how the data we write in the block becomes valid or invalid.

• This learning will greatly benefit you to be in Crypto Academy later, because we are in cryptocurrency-based social media, and Cryptocurrency is in blockchain technology.

• Thank you very much, we will waiting for your next exercise, and we will waiting you at the season 4 of Crypto Academy. 👍💪

Has been assessed by;
@liasteem
@steem.education