# 📐  L2 Spec — Quantum Monte Carlo (VMC + DMC) Mismatch-Only Spec

**ID:** `L2-321-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-321`](/artifact/l1/L1-321)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.45 · **Delta tier:** 5
> **⛓ On-chain block:** 41554084

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| Method | — | VMC, DMC, AFQMC |
| N steps | — | 1000 – 100000000.0 |
| N walkers | — | 100 – 1000000 |
| N electrons | — | 2 – 1000 |

## 2. Tolerance (ε)

**Type:** `fn`

```
0.5 * (1 + 0.1 * mismatch_severity)
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.45 |
| Delta tier | 5 |

## 4. Fingerprint

`abcc69cc03172406366db1029b78799d6589b139bb9e7408c170a3d708cb4a44`

## 5. On-chain Registration

- **Chain hash:** `0x11c6be83d3a8ae1edeb42de959242990bdee941c96c22408456f8380b71fdff8`
- **Chain tx hash:** `0x0f0a8d8ea826248fc77f0dab9b3f156682b5e1f4b7ab6c38def6546843717306`
- **Chain block:** `41554084`

---

## File Mapping

This bundle consists of: `L2-321-001.md`, `L2-321-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-321-001.md` | Source of truth — edit this | Human or LLM |
| `L2-321-001.json` | Structured metadata for the registry | LLM regenerates from the sections above |

**Prompt for your LLM after editing this Markdown:**

> Read the attached Markdown. Regenerate the sibling `.json` so every field matches.
> Preserve the schema documented in the rows above.
> Output each file in its own fenced code block tagged with the filename.
> Output only the JSON object.

_This Markdown was auto-synthesized from the catalog row for `L2-321-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._