> For the complete documentation index, see [llms.txt](https://docs.os.codes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.codes/core-architecture/smart-contract-structure.md).

# Smart Contract Structure

<figure><img src="/files/ACXxsAKMctH9yQKKB9Cm" alt=""><figcaption></figcaption></figure>

### Contract Structure

Smart contracts are organized modularly with specific purposes. Each contract handles distinct functionality while maintaining minimal dependencies.

**Core Contracts:**

* **RepositoryRegistry**: Tracks repos and ownership
* **PaymentProcessor**: Handles automated payments
* **GovernanceModule**: Manages voting and proposals
* **TreasuryController**: Controls platform funds
* **AccessControl**: Manages permissions

### Security Measures

Security is built into every contract through industry best practices. Multiple layers of protection ensure funds and data remain safe.

### Upgrade Mechanism

Contracts use proxy patterns for upgradeability while maintaining security. Governance controls all upgrades with time-locks for safety.

**Upgrade Process:**

1. Proposal submitted with new code
2. Community review period (7 days)
3. Governance voting (7 days)
4. Time-lock activation (48 hours)
5. Automatic deployment