In this deep dive, we explore how blocks are physically stored on disk and shared across the P2P network.
📁 Blockchain File Structure
Nodes store raw block data in files (e.g.blk00000.dat). Each block header links to the preceding block hash, forming a linear, append-only graph.
Running a Full Node gives you complete financial sovereignty: you don’t need to ask any third-party server whether your transaction went through—your node verifies it directly.
🧠 Today's Key Takeaway
- Blockchain is an append-only sequence of cryptographically linked data structures.
- Full Nodes maintain individual copies, eliminating reliance on central servers.
