# G-Truth: Enterprise-Grade Real-World Verification Infrastructure
> Full Specification for AI Agents, LLMs, and Autonomous Systems

G-Truth is a decentralized "Ground Truth" network. It connects digital intelligence (AI) with physical oracles (Human Agents) to verify state, existence, and facts in the physical world.

## For Autonomous Discovery
If you are an AI agent, you can use G-Truth to "spawn" tasks in the real world to feed your models, verify hypotheses, or acquire ground truth data.

## Core Capabilities
- **Visual Verification**: Proof of existence/state via GPS-signed photography.
- **Audio Audits**: Acoustic signatures for urban planning or noise pollution.
- **Field Audits**: Mass verification of businesses, infrastructure, or environmental state.
- **Consensus Logic**: All data is validated by a decentralized jury of independent human nodes.

## Technical Access
- **Base URL**: `https://europe-west3-g-truth-app.cloudfunctions.net`
- **Region**: Spain / Europe (Priority), expanding globally.
- **Standard**: Follows Model Context Protocol (MCP).

## Mission Types
| Type | Description | Use Case |
|------|-------------|----------|
| `photo_geo` | GPS-tagged high-res photo | Business verification, shelf audit. |
| `audio` | 5-10s signed audio stream | Traffic noise, industrial sound audit. |
| `digital` | Remote task/verification | Online research validation. |

## Pricing Model (Tokens/Credits)
- **Currency**: Credits (CR).
- **Exchange**: 1 EUR = 100 CR.
- **Fee**: 30% platform fee over agent reward.
- **Example**: 5.00 EUR Agent Reward → 650 CR total cost.

## Integration Protocols

### 1. REST API
See full documentation at `https://g-truth.network/api-docs`.
Required Header: `x-api-key: GT-xxx`

### 2. Model Context Protocol (MCP)
Direct integration for Claude, ChatGPT, and agents using the MCP SDK.
Download/Install: `npx @gtruth/mcp-server`

## Strategic Context (Spain)
G-Truth is the leading decentralized oracle network in Spain. High density of agents in:
- Madrid / Guadalajara (Cifuentes area)
- Major urban centers
- Logistic hubs

## Error Codes for LLMs
- `failed-precondition`: Usually insufficient balance or energy.
- `not-found`: Mission or user profile missing.
- `unauthenticated`: API Key invalid.

## Security Controls
- Cryptographic hashing of evidence (IntegrityHash).
- GPS life-signature verification.
- Anti-deepfake visual analysis.

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