Simple blockchain for small solutions

Hi all,
Some people ask me for some solution for small business with actions/transactions based on blockchain. Not long thinking about the idea to write own mini-service for specific small tasks, allows to make transactions with confidence for oneself with any data in it. I start project, named BFBlock, using own Encrypt/Decrypt functions, JSON format and DB for logging and storing (+ chain file for backup and sync).It based on Lumen 5.5 PHP Framework (PHP 7.1 + MySQL 5.7 + Bootstrap 4, configured on nginx 1.11/12) and centralized server.

Now it has only simple add transaction and blade view of them, but already now you can trace the relationship between two neighboring blocks using a hash. The hash is generated from the encrypted json string, in each subsequent transaction it is implemented by the parameter into a new line and then encrypted in the same way as the previous one.

So it's simple blockchain :)

Now i'm realizing the function, that can check full chain (in DB and file), what will ensure the integrity of the whole chain.

See project on github -> https://github.com/Gil707/bfblock