GasLiteBirth

# 🪶 GasLiteBirth

GasLiteBirth is a minimal, gas-optimized Solidity smart contract that records its own creation details on-chain.

Each deployment is unique — it stores the deployer’s address, block number, timestamp, and a unique “birth hash” fingerprint.

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## 💡 Overview

This project demonstrates how a smart contract can self-document its own creation using blockchain metadata — all while remaining extremely gas-efficient.

Every time you deploy GasLiteBirth, it automatically:

- Records who deployed it creator)

- Logs when it was created birthTime)

- Captures which block it was born in birthBlock)

- Generates a unique fingerprint birthHash)

No inputs, no functions, no interaction required — just pure on-chain identity.

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## ⚙️ Features

- Beginner-Friendly – Simple, readable Solidity.

- Unique Each Deployment – No two contracts have the same hash.

- Gas-Optimized – Uses immutable variables and compact types.

- Instantly Works – No user input or configuration required.

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## 🧩 Smart Contract

```solidity

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.19;

/// @title GasLiteBirth - Minimal, gas-optimized contract that records its own creation info

/// @notice Demonstrates constructor use, immutables, and block metadata

contract GasLiteBirth {

// immutables use code storage instead of contract storage (cheaper gas)

address public immutable creator;

uint64 public immutable birthTime; // fits in 8 bytes (less gas)

uint64 public immutable birthBlock; // fits in 8 bytes

bytes32 public immutable birthHash; // unique fingerprint

constructor() {

creator = msg.sender;

birthTime = uint64(block.timestamp);

birthBlock = uint64(block.number);

// derive a unique fingerprint from deployer, time, and block number

birthHash = keccak256(

abi.encodePacked(msg.sender, block.timestamp, block.number)

);

}

}