Enterprise-grade smart contract infrastructure for tokenized carbon credits, emissions tracking, offset verification, and decentralized carbon markets.
The Carbon Credit Protocol enables organizations to register emissions, purchase verified carbon offsets, and prove environmental accountability on-chain through transparent, auditable smart contracts.
Built with Solidity + Foundry, the protocol demonstrates a production-oriented architecture including registries, tokenized offsets, NFT certificates, governance, and marketplace infrastructure.
Climate accountability requires transparent systems capable of verifying emissions and tracking carbon offset commitments.
Traditional carbon markets suffer from:
- lack of transparency
- double counting of offsets
- centralized verification
- inefficient settlement
The Carbon Credit Protocol solves these issues using blockchain-based infrastructure that provides:
- immutable carbon credit issuance
- transparent emissions reporting
- tokenized offset markets
- verifiable offset certificates
- DAO governance for registry oversight
Tokenized carbon credits representing verified offset units.
- ERC20 carbon credit tokens
- controlled minting authority
- on-chain transfer and settlement
- burn mechanism when offsets are claimed
Each offset action generates a non-fungible certificate proving:
- emission offset amount
- issuing project
- offset timestamp
- ownership of the offset record
These certificates provide public auditability of sustainability claims.
Organizations can register and track emissions on-chain.
Registry features include:
- company registration
- emissions reporting
- offset tracking
- net emissions calculation
A decentralized marketplace where carbon credits can be traded.
Marketplace capabilities include:
- listing carbon credit orders
- peer-to-peer settlement
- platform fee configuration
- order cancellation
- safe asset transfers
External data sources can report emissions or verification results.
Oracle contracts allow:
- trusted emissions reporting
- project verification updates
- external climate data feeds
Protocol governance is handled by token holders through a DAO.
Governance functionality includes:
- proposal submission
- voting
- quorum enforcement
- execution of approved actions
This ensures the registry and market evolve through decentralized governance.
Carbon Credit Protocol
│
├── CarbonCreditToken
│ └── ERC20 carbon credit representation
│
├── CarbonOffsetCertificate
│ └── NFT proof of offset
│
├── EmissionRegistry
│ └── company emissions + offset tracking
│
├── CarbonMarketplace
│ └── decentralized credit trading
│
├── CarbonOracle
│ └── emissions verification
│
└── CarbonDAO
└── governance layer
src/
│
├── CarbonCreditToken.sol
├── CarbonOffsetCertificate.sol
├── EmissionRegistry.sol
├── CarbonMarketplace.sol
├── CarbonOracle.sol
└── CarbonDAO.sol
test/
│
├── ProtocolFlow.t.sol
├── Marketplace.t.sol
├── DAO.t.sol
script/
│
└── DeployCarbonProtocol.s.sol
Install Foundry if not already installed.
curl -L https://foundry.paradigm.xyz | bash
foundryup
Clone the repository:
git clone https://github.com/YOUR_USERNAME/carbon-credit-protocol
cd carbon-credit-protocol
Install dependencies:
forge install
forge build
forge test -vv
Example deployment using Foundry scripts.
forge script script/DeployCarbonProtocol.s.sol \
--rpc-url $RPC_URL \
--private-key $PRIVATE_KEY \
--broadcast
The protocol incorporates several security patterns:
- controlled minting roles
- safe marketplace settlement
- DAO proposal threshold
- quorum requirements
- order validation checks
- ownership transfer protection
The repository is designed as a security-aware reference implementation suitable for:
- smart contract audit practice
- DeFi architecture demonstrations
- climate-tech blockchain projects
Future protocol improvements could include:
- Verifiable carbon project registries
- zk-proof emissions verification
- cross-chain carbon credit markets
- on-chain carbon derivatives
- ESG reporting integrations
- automated climate reporting dashboards
The protocol infrastructure can support:
- corporate carbon neutrality programs
- tokenized climate finance
- carbon credit trading platforms
- sustainability compliance systems
- climate transparency tooling
- Solidity
- Foundry
- ERC20
- ERC721
- DAO governance architecture
- Oracle integration patterns
Yaghoub (Jacob) Adelzadeh
Blockchain Architect | Smart Contract Engineer | Solidity Auditor
LinkedIn https://www.linkedin.com/in/dappteacher
MIT License