# Introduction

**Quantropy** is the systematic injection of non-deterministic entropy into blockchain.

In plain terms: Quantropy is a protocol and infrastructure layer that supplies *verifiable, real-time quantum randomness*—harvested from physical subatomic particle collapse—instead of software-generated pseudo-randomness. It is a **Decentralized Physical Infrastructure Network (DePIN)** that anchors this entropy on-chain (Solana) and exposes it via a low-latency API backed by a multi-vendor quantum processor fleet (IBM, IonQ, Rigetti).

* **Primary tech stack:** Solana (settlement), multi-vendor QPU fleet, REST/gRPC API.
* **Core value:** Moving from digital simulation to physical reality—replacing vulnerable software simulations with absolute sub-atomic physics.

Every entropy request returns high-fidelity random bytes plus a **Quantum Job ID** and **Solana transaction**, so you get both the randomness and the proof. Use it for cryptographic nonces, fair lotteries, AI agent seeds, oracles, and any use case where verifiable, non-deterministic randomness matters. The docs cover the [philosophy](/welcome/philosophy.md), [Quick Start](/welcome/quick-start.md), [API](/developers/api-reference.md), [SDKs](/developers/sdk-libraries.md), and [tokenomics](/tokenomics/qpy-overview.md).

***

## Key metrics

| Metric               | Value                         |
| -------------------- | ----------------------------- |
| **Global Latency**   | <1ms (Internal Engine)        |
| **Network Capacity** | 250k+ Concurrent Requests     |
| **Hardware Fleet**   | 5,000+ Available Qubits       |
| **Throughput**       | 1M+ Daily Verifiable Requests |

***

[**Integrate Now**](/welcome/quick-start.md) — Get API access and start building on real quantum entropy.

**Next:** [Philosophy](/welcome/philosophy.md) · [Quick Start](/welcome/quick-start.md) · [API Reference](/developers/api-reference.md)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.quantropylab.com/welcome/readme.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.