Carbon Credits Smart Contract

Project Overview

The Carbon Credits smart contract is designed to create a transparent, secure, and efficient system for issuing, tracking, and trading carbon credits. By leveraging blockchain technology, this contract ensures authenticity and prevents fraud in the carbon credit market through a decentralized marketplace.

Key Features

  • Issuance Module: Manages the creation of carbon credit tokens by verified issuers.
  • Verification Module: Handles the verification process for emissions reductions by third-party verifiers.
  • Marketplace Module: Facilitates the buying, selling, and trading of carbon credits.
  • Tracking and Reporting Module: Tracks the status and history of carbon credits.
  • Compliance and Security Module: Ensures compliance with regulations and implements security measures.

Prerequisites

  • Rust and Cargo installed on your system.
  • Familiarity with blockchain concepts and smart contracts.
  • Access to the Soroban SDK.

Setup & Installation

Dependencies

  • Rust (edition 2021)
  • Soroban SDK

Build Instructions

  1. Clone the repository: 2. Build the project using Cargo:

Deployment Steps

  1. Ensure you have the Soroban environment set up.
  2. Deploy the contract using Soroban CLI or your preferred deployment tool.

Usage Guide

Main Functions and Their Purpose

  • Issuance Module

    • create_credit: Creates a new carbon credit.
    • authorize_issuer: Authorizes an issuer to create credits.
  • Verification Module

    • verify_project: Verifies a project for emissions reductions.
    • record_verification: Records verification data on the blockchain.
  • Marketplace Module

    • buy_credit: Allows a user to purchase carbon credits.
    • sell_credit: Allows a user to list credits for sale.
  • Tracking Module

    • retire_credit: Retires a carbon credit, marking it as used.
    • get_credit_history: Retrieves the history of a carbon credit.
  • Compliance Module

    • check_compliance: Checks compliance with specified rules.
    • enforce_security: Enforces security measures.

Common Operations with Examples

  • Creating a Credit

  • Verifying a Project

  • Buying a Credit

Contract Structure

Key Files

  • src/lib.rs: Main entry point for the smart contract.
  • src/issuance.rs: Manages credit issuance.
  • src/verification.rs: Handles project verification.
  • src/marketplace.rs: Facilitates credit trading.
  • src/tracking.rs: Tracks credit status and history.
  • src/compliance.rs: Ensures compliance and security.
  • src/types.rs: Defines common data structures.
  • src/errors.rs: Defines error handling mechanisms.
  • src/utils.rs: Provides utility functions.

Main Components and Their Relationships

  • Issuance and Verification: Work together to ensure only verified credits are issued.
  • Marketplace and Tracking: Collaborate to manage credit trading and status updates.
  • Compliance: Interacts with all modules to enforce rules and security.

Testing

How to Run Tests

Run the tests using Cargo:

Test Coverage Overview

  • Issuance Tests: Validate credit creation and authorization.
  • Verification Tests: Ensure proper project verification.
  • Marketplace Tests: Test buying and selling operations.
  • Tracking Tests: Verify credit status updates and history retrieval.
  • Compliance Tests: Check compliance and security enforcement.

Security Considerations

  • Implement role-based access control to prevent unauthorized actions.
  • Use blockchain's immutability to secure transaction records.

Troubleshooting Tips

  • Ensure all dependencies are correctly installed.
  • Verify that the Soroban environment is properly configured.
  • Check error messages for guidance on resolving issues.

This documentation provides a comprehensive guide to understanding and using the Carbon Credits smart contract, ensuring a smooth development and deployment process.

CarbonCreditsSC