# 📐  L2 Spec — Classical Molecular Dynamics Mismatch-Only Spec

**ID:** `L2-299-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-299`](/artifact/l1/L1-299)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.45 · **Delta tier:** 5
> **⛓ On-chain block:** 41554117

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| Ff | — | AMBER, CHARMM, OPLS, GROMOS, ReaxFF |
| T k | — | 4 – 5000 |
| Dt fs | — | 0.1 – 10 |
| N atoms | — | 100 – 10000000.0 |
| N steps | — | 1000 – 10000000000.0 |

## 2. Tolerance (ε)

**Type:** `fn`

```
0.04 * (1 + 0.1 * mismatch_severity)
```

## 3. Difficulty

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

## 4. Fingerprint

`177435e03f0deca02f9b9891521f0355e969fd2fd800536e501415b89ffbcac4`

## 5. On-chain Registration

- **Chain hash:** `0x330db8a1c4dd682a60a9fef55bd34184b444b2e5817ee68549804cd2bee8793c`
- **Chain tx hash:** `0x48c2fbbb2841d151af3e9120d0323b9a7d0c9a97ba626dca001e3c0f0a1fefdd`
- **Chain block:** `41554117`

---

## File Mapping

This bundle consists of: `L2-299-001.md`, `L2-299-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-299-001.md` | Source of truth — edit this | Human or LLM |
| `L2-299-001.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 `L2-299-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._