Trust fall exercise. You fall backward. Someone catches you. But what if they don't? Blockchain is trust — but the cryptographic kind. Mathematical kind.
Building a blockchain from scratch in Rust involves using custom data structures to represent blocks and the chain itself, combined with cryptographic hashing for security and a "mining" process to validate new entries .
1. Core Data Structures
The foundation of a blockchain consists of two primary structs: Block, which holds the actual data, and BlockChain, which stores the sequence of blocks in a vector .
Block Fields: Typically include a unique id, a nonce (used for mining), the data payload, the current block's hash, the previous_hash to link it to the chain, and a timestamp .
