# 📐  L2 Spec — CMB Gravitational Lensing Reconstruction — Nominal + Mismatch Specs

**ID:** `L2-367-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-367`](/artifact/l1/L1-367)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.38 · **Delta tier:** 5
> **⛓ On-chain block:** 41555179

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| N pix side | — | 512 – 8192 |
| Noise uk arcmin | — | 1.0 – 50.0 |
| Beam fwhm arcmin | — | 0.5 – 10.0 |
| Survey area deg2 | — | 1000 – 40000 |

## 2. Tolerance (ε)

**Type:** `fn`

```
1.0 + 0.05 * (noise_uK_arcmin / 5.0) ** 0.5
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.38 |
| Delta tier | 5 |

## 4. Fingerprint

`c63e94ad3a82f9571409232ae52c8c246c0b15477cc0017892325196c3fc5431`

## 5. On-chain Registration

- **Chain hash:** `0x021ab9a1247afa7177ef18f1272a0638231deaca79b829141b9a09f656c19b9b`
- **Chain tx hash:** `0x7f2d52be34eaf220e70727f2ca2d4035c1cbc32518b7885329dab2f24056390d`
- **Chain block:** `41555179`

---

## File Mapping

This bundle consists of: `L2-367-001.md`, `L2-367-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-367-001.md` | Source of truth — edit this | Human or LLM |
| `L2-367-001.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 `L2-367-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._