# Contracts

Overview of the source code of the contracts [here](https://github.com/Mojoflower-garden/Carbon-Registry-Contracts/tree/main). 

### Carbon Contract Registry

Our [`CarbonContractRegistry`](https://github.com/Mojoflower-garden/Carbon-Registry-Contracts/blob/main/contracts/CarbonContractRegistry.sol) contract deploys all project contracts.\
\
Polygon mumbai - testnet

```
0x825CcCB05D82fcD0381E523116A03b9301E91C61
```

Polygon Test / Development contracts - mainnet

```
0x0B0fCaCD2336A5f000661fF5E69aA70c28fD526D
```

Polygon - mainnet

<pre><code><strong>0x9f87988FF45E9b58ae30fA1685088460125a7d8A
</strong></code></pre>

### Carbon Registry Token Vault

Our [`CarbonRegistryTokenVault`](https://github.com/Mojoflower-garden/Carbon-Registry-Contracts/blob/main/contracts/TokenVault.sol) contract stores credits that have been validated / verified and issued but proponent has not requested to receive the credits. It also stores a portion of credits as insurance.

Polygon mumbai - testnet

```
0xCbf5bC0E76E490C432477506F2033587a60B5Fac
```

Polygon - mainnet

```
0x219BaB4AC1FD5b83940ea52A1E1B5Ea6d5ACE23F
```

We also have a [subgraph](https://thegraph.com/hosted-service/subgraph/skjaldbaka17/carbon-registry-polygon) created using [theGraph](https://thegraph.com/) ([testnet subgraph](https://thegraph.com/hosted-service/subgraph/skjaldbaka17/carbon-registry-test) - [mainnet test contracts subgraph](https://thegraph.com/hosted-service/subgraph/skjaldbaka17/carbon-registry-main-test)). Developers can use the indexed data for getting the most important on chain data for each credit, like supply and serialization.&#x20;