Like what I've said, it's just a basic one where we can analyze how does the blockchain works. Yes, you need a connection if you wanted to input the network kaso wala naman akong ginamit na connection so there's no network.

I'm not a programmer also, so I made a simple one and source ko ang github if tatanungin mo naman yung codes. The reason why I made this is na-curious lang din ako kung paano at bakit nga ba tinawag na blockchain?
Kasi kung sa tutuusin halos lahat ng advanced technology ay may network, lahat ng makabago ay may netowrk, mapa-IoT man yan, LoRawan, there's a network, kaya understood na yon. Ang point ko lang din dito is para malaman what's inside and how does it simulate hashes.

So for short, there's no network, I hope you understand.