# 📐  L2 Spec — Weak Gravitational Lensing Shear Estimation — Nominal + Mismatch Specs

**ID:** `L2-369-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-369`](/artifact/l1/L1-369)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.37 · **Delta tier:** 5
> **⛓ On-chain block:** 41555180

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| A ia | — | 0.0 – 2.0 |
| N gal million | — | 1 – 3000 |
| N gal arcmin2 | — | 5 – 100 |
| Survey area deg2 | — | 100 – 20000 |

## 2. Tolerance (ε)

**Type:** `fn`

```
0.010 + 0.005 * sqrt(survey_area_deg2 / 1000)
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.37 |
| Delta tier | 5 |

## 4. Fingerprint

`48d5de001e2d624ea2acef276bc70352dd5e29262a7b890adf008d037a49f061`

## 5. On-chain Registration

- **Chain hash:** `0x11544128edac3044645c2ee13902db7f2f143507b4d361fe239a7a8eb0dc990a`
- **Chain tx hash:** `0x8ea9eb8a58cc2b07c0dec2cb6a67d954f9c1af84a13c50e1fa7e7e8b5745fb78`
- **Chain block:** `41555180`

---

## File Mapping

This bundle consists of: `L2-369-001.md`, `L2-369-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-369-001.md` | Source of truth — edit this | Human or LLM |
| `L2-369-001.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 `L2-369-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._