# 📐 L2 Spec — Rayleigh Scattering — molecular / small-particle scattering Mismatch-Only Spec
**ID:** `L2-244-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-244`](/artifact/l1/L1-244)
> **🎯 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 | — | 1 – 256 |
| N wavelengths | — | 1 – 200 |
| Wavelength error | — | 0.0 – 0.01 |
| Path length error | — | 0.0 – 0.05 |
| Polarizability error | — | 0.0 – 0.1 |
## 2. Tolerance (ε)
**Type:** `fn`
```
18.0 + 0.3*SNR_dB - 20.0*polarizability_error - 15.0*path_length_error - 50.0*wavelength_error
```
## 3. Difficulty
| Property | Value |
|---|---|
| Difficulty score | 0.48 |
| Delta tier | 5 |
## 4. Fingerprint
`1bcb80faf82c206015a863d9b202e3768c5d8104420d2215ccd0c9450e30c479`
## 5. On-chain Registration
- **Chain hash:** `0xc0570f3cce23915d48534a8519016c754af11dee1c8394c9020f18ad7e1e7519`
- **Chain tx hash:** `0xf159184e6123fcb0443c62af1a06fe216c9a68448a86bb0f29126667a68bccc4`
- **Chain block:** `41553992`
---
## File Mapping
This bundle consists of: `L2-244-001.md`, `L2-244-001.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-244-001.md` | Source of truth — edit this | Human or LLM |
| `L2-244-001.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 `L2-244-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._