> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vibesflow.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Smart Contract Architecture

> Overview of VibesFlow's smart contract system on Metis

# Smart Contract Architecture

VibesFlow implements a modular smart contract system on the Metis blockchain that enables real-time asset creation, delegation, and monetization through vibestreams.

## Contract Overview

The VibesFlow protocol consists of four core contracts:

<CardGroup cols={2}>
  <Card title="VibeFactory" icon="industry" href="/contracts/vibe-factory">
    Creates RTA NFTs and manages delegation
  </Card>

  <Card title="PPM Contract" icon="clock" href="/contracts/ppm">
    Handles pay-per-minute streaming payments
  </Card>

  <Card title="VibeKiosk" icon="ticket" href="/contracts/vibe-kiosk">
    Manages ticket sales for vibestreams
  </Card>

  <Card title="Subscriptions" icon="calendar" href="/contracts/subscriptions">
    Handles Vibe Market access subscriptions
  </Card>
</CardGroup>

## Architecture Principles

### Modular Design

Each contract handles a specific domain of functionality, allowing for independent upgrades and maintenance.

### Gas Optimization

All contracts implement gas-efficient patterns with minimal external calls and optimized storage layouts.

### Security First

* Reentrancy protection on all payable functions
* Access control with role-based permissions
* Emergency pause functionality where appropriate
* Comprehensive input validation

## Key Features

### Real-Time Assets (RTAs)

NFTs that acquire value in real-time through streaming activities, implemented via the PPM contract's time-based payment system.

### Integrated Delegation

Built-in delegation system allows creators to authorize others to manage their vibestreams without transferring ownership.

### Revenue Distribution

Automatic 80/20 split between creators and treasury across all monetization mechanisms.

### Cross-Contract Integration

Seamless interaction between contracts through standardized interfaces and event-driven architecture.

## Network Details

**Blockchain**: Metis Andromeda\
**Native Token**: tMETIS\
**Block Time**: \~2 seconds\
**Finality**: Instant

## Next Steps

<CardGroup cols={2}>
  <Card title="RTA Protocol" icon="link" href="/contracts/rta-protocol">
    Learn about Real-Time Assets
  </Card>

  <Card title="Contract Flows" icon="diagram-project" href="/contracts/flows">
    Understand interaction patterns
  </Card>
</CardGroup>