About the project
Carbon markets are hard for small businesses and local project developers to access. Carxit is a decentralised marketplace on the Solana blockchain where Nigerian SME owners can buy carbon credits directly from local carbon project developers.
What we built
- Solana program architecture — on-chain logic for listing and trading carbon credits.
- Carbon credits as tokens — credits issued and transferred using Solana’s SPL Token program.
- Secure escrow — Program-Derived Addresses (PDAs) hold funds so SOL-for-credit swaps settle safely for both sides.
- Web app — a React.js front end connected to users’ crypto wallets through Web3.js.
- Decentralised verification — project verification data stored on IPFS so it can’t be quietly changed.
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