# 📐 L2 Spec — Nuclear Data — R-matrix resonance evaluation Mismatch-Only Spec
**ID:** `L2-362-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-362`](/artifact/l1/L1-362)
> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.48 · **Delta tier:** 5
> **⛓ On-chain block:** 41554107
---
## 1. Domain Ω
**Type:** `range`
| Parameter | Unit | Range |
|---|---|---|
| Snr db | dB | 0 – 40 |
| Width error | — | 0.0 – 0.1 |
| N energy pts | — | 100 – 1000000 |
| N resonances | — | 1 – 5000 |
| Peak pos error | — | 0.0 – 0.02 |
| Temp nuc error | — | 0.0 – 100 |
| Background error | — | 0.0 – 0.3 |
## 2. Tolerance (ε)
**Type:** `fn`
```
1.0 + 50.0*peak_pos_error + 15.0*width_error + 0.01*temp_nuc_error + 10.0*background_error
```
## 3. Difficulty
| Property | Value |
|---|---|
| Difficulty score | 0.48 |
| Delta tier | 5 |
## 4. Fingerprint
`2f219088a362297abe23882c48411fb96c856dd8894140dd58c54ab1a5959dfc`
## 5. On-chain Registration
- **Chain hash:** `0x74d551cda913febd3df931e57d1b3784af5646808de56bc59e5393ed3379cb4f`
- **Chain tx hash:** `0xf7b23d2be0a17a83d34308e03b71bc40a7420352e464d3720c3b633398b4522f`
- **Chain block:** `41554107`
---
## File Mapping
This bundle consists of: `L2-362-001.md`, `L2-362-001.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-362-001.md` | Source of truth — edit this | Human or LLM |
| `L2-362-001.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 `L2-362-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._