# Smart contract architecture

Creator Vault uses smart contracts for campaigns, NFT receipts, and bounties. Funds live in contracts. Creators and supporters interact through wallet transactions.

### High-level components

* **Factory contracts**
  * Deploy new campaign and bounty contracts.
* **Campaign contracts**
  * Accept $CAMP contributions.
  * Enforce withdrawal and refund rules.
* **Campaign NFT (ERC721)**
  * Mints receipt NFTs to supporters.
* **Bounty contracts**
  * Hold a locked reward pool.
  * Distribute rewards once, after the deadline.

### Roles

* **Creator**
  * Deploys campaigns and bounties.
  * Withdraws campaign funds when eligible.
  * Approves refunds for failed campaigns.
  * Selects bounty winners.
* **Supporter**
  * Funds campaigns.
  * Receives an NFT receipt.
  * Claims refunds if approved.

### Transactions you’ll commonly sign

* Deploy a campaign (creator).
* Deploy a bounty + deposit reward pool (creator).
* Fund a campaign (supporter).
* Withdraw campaign funds (creator).
* Approve + claim refunds (creator + supporter).
* Distribute bounty rewards (creator).

### Contract addresses (Camp Network mainnet)

* **CrowdfundingFactory**: `0xbDA3C2F7B43073e839dca15E95188f092649cF3f`
* **CampaignNFT (ERC721)**: `0xD5fbD7b84b3eFBd4d170833c07EC562991902075`
* **BountyFactory**: `0xd65C7439FE678fEf9E0b222395dA3a343A996A00`
* **Platform fee wallet**: `0x318787Ab7315c8d736A539a6C1bd8456f8266D47`

{% hint style="warning" %}
Addresses are network-specific. Always verify you are on the intended network before transacting.
{% endhint %}

### Immutability and upgrades

Contracts are intended to be immutable. New features typically ship as new deployments.


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