# 📐  L2 Spec — Supernova Light Curve Fitting — Nominal + Mismatch Specs

**ID:** `L2-372-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-372`](/artifact/l1/L1-372)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.32 · **Delta tier:** 5
> **⛓ On-chain block:** 41555180

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| N bands | bands | 3 – 6 |
| N epochs | — | 5 – 100 |
| Redshift z | — | 0.01 – 2.0 |
| Photometric noise mmag | — | 1.0 – 50.0 |

## 2. Tolerance (ε)

**Type:** `fn`

```
0.10 + 0.02 * (photometric_noise_mmag / 5.0) ** 0.5
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.32 |
| Delta tier | 5 |

## 4. Fingerprint

`79c094faefb80378cc1b49f81b04888e0c8217b2eeacd61c1a4e6336de1da633`

## 5. On-chain Registration

- **Chain hash:** `0x44b540650b6b1f13e1864417a40746ced4974c84cf35aeeb7b1eb9016c355235`
- **Chain tx hash:** `0xdab043ac9954a04f53a5a26fd5c6cb3d2b6576102836df95d198d2345f8ae5d4`
- **Chain block:** `41555180`

---

## File Mapping

This bundle consists of: `L2-372-001.md`, `L2-372-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-372-001.md` | Source of truth — edit this | Human or LLM |
| `L2-372-001.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 `L2-372-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._