# 📐  L2 Spec — FTIR Imaging Scatter-Corrected Spec

**ID:** `L2-140-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-140`](/artifact/l1/L1-140)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.4 · **Delta tier:** 5
> **⛓ On-chain block:** 41554230

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| H | px | 32 – 1024 |
| K | — | 1 – 20 |
| W | px | 32 – 1024 |
| N nu | — | 128 – 4096 |
| Delta nu cm1 | — | 2 – 32 |
| Baseline drift | — | 0.0 – 0.3 |
| Mie scattering | — | 0.0 – 0.5 |
| Water vapor spikes | — | 0.0 – 0.2 |
| Pure component uncertainty | — | 0.0 – 0.3 |

## 2. Tolerance (ε)

**Type:** `fn`

```
3e-3 + 0.05 * mie_scattering + 0.02 * baseline_drift + 0.05 * water_vapor_spikes + 0.1 * pure_component_uncertainty
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.4 |
| Delta tier | 5 |

## 4. Fingerprint

`3bfdf04bc81d5e4499efe37e6ca8b3824eba079bf4a301b1cd2e9d169f13692d`

## 5. On-chain Registration

- **Chain hash:** `0xa6f54f5de515e34e6bf0609c01655dc0699f13804ec9bd70498d18edcf8d517a`
- **Chain tx hash:** `0x72eb6a2b940176299dcd022211f0f53d023ee4b2d2f7b125aa9ad300c9977322`
- **Chain block:** `41554230`

---

## File Mapping

This bundle consists of: `L2-140-001.md`, `L2-140-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-140-001.md` | Source of truth — edit this | Human or LLM |
| `L2-140-001.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 `L2-140-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._