Blockchain Demo (C++)

This repository is a compact hands-on introduction to how a blockchain is wired together: each block carries an index, timestamp, arbitrary data, the previous block hash, and its own hash so the list stays tamper-evident.

You can mine new blocks with custom payload text, walk the sequence in memory, and persist the result to a text file—enough to demonstrate classes, vectors, and file I/O while the story stays focused on hashes and linkage.

It is intentionally small-scope C++ (MIT-licensed) aimed at readers who want to see blockchain mechanics in code before jumping to distributed consensus or production cryptography.