# 📐  L2 Spec — Mie Scattering — rigorous spherical-particle scattering Mismatch-Only Spec

**ID:** `L2-243-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-243`](/artifact/l1/L1-243)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.48 · **Delta tier:** 5
> **⛓ On-chain block:** 41553992

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| Snr db | dB | 0 – 40 |
| N angles | — | 18 – 3600 |
| N wavelengths | — | 1 – 50 |
| N complex error | — | 0.0 – 0.05 |
| Concentration error | — | 0.0 – 0.3 |
| Polydispersity width error | — | 0.0 – 0.3 |

## 2. Tolerance (ε)

**Type:** `fn`

```
16.0 + 1.0*log2(N_wavelengths/1) + 0.25*SNR_dB - 40.0*n_complex_error - 10.0*polydispersity_width_error
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.48 |
| Delta tier | 5 |

## 4. Fingerprint

`3ff515a6bb248a3701e8b9ca2cb4672e5ceb0eb000a24696ce3fe27ab6d30321`

## 5. On-chain Registration

- **Chain hash:** `0xb629030d04a2d6e8afcc868829a2287342cf2c3021ea636dad6e6e36b038fe65`
- **Chain tx hash:** `0x8d987611722848e634c5aa0771ceb74a42c8ec9c0ddb3e3dbc1529fce595f987`
- **Chain block:** `41553992`

---

## File Mapping

This bundle consists of: `L2-243-001.md`, `L2-243-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-243-001.md` | Source of truth — edit this | Human or LLM |
| `L2-243-001.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 `L2-243-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._