# 📐 L2 Spec — Resistive MHD — finite-resistivity plasma Mismatch-Only Spec
**ID:** `L2-343-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-343`](/artifact/l1/L1-343)
> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.48 · **Delta tier:** 5
> **⛓ On-chain block:** 41554085
---
## 1. Domain Ω
**Type:** `range`
| Parameter | Unit | Range |
|---|---|---|
| H | px | 64 – 4096 |
| W | px | 64 – 4096 |
| Eta | — | 1e-08 – 0.1 |
| Snr db | dB | 0 – 40 |
| N times | — | 100 – 100000 |
| Bc error | — | 0.0 – 0.3 |
| Eta error | — | 0.0 – 0.3 |
| Grid error | — | 0.0 – 0.2 |
| Hyper resistivity error | — | 0.0 – 0.3 |
## 2. Tolerance (ε)
**Type:** `fn`
```
12.0 + 0.3*SNR_dB - 10.0*eta_error - 10.0*hyper_resistivity_error - 15.0*grid_error - 5.0*bc_error
```
## 3. Difficulty
| Property | Value |
|---|---|
| Difficulty score | 0.48 |
| Delta tier | 5 |
## 4. Fingerprint
`abd1f6c20074683c6b5bec2a02477c46149766c4461c00ff952d89eaf71e2748`
## 5. On-chain Registration
- **Chain hash:** `0x3f2fe62b9f682467aa4a74f811f3d2b3e3d813229a59f61992801030a4dd149e`
- **Chain tx hash:** `0x2dcd38052c51a3078085cfe839219a8dbabc7d642ccb056f66a673eabfdbe111`
- **Chain block:** `41554085`
---
## File Mapping
This bundle consists of: `L2-343-001.md`, `L2-343-001.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-343-001.md` | Source of truth — edit this | Human or LLM |
| `L2-343-001.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 `L2-343-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._