# 📐 L2 Spec — Spinning Disk Confocal (Nipkow) Microscopy Mismatch-Only Spec
**ID:** `L2-022-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-022`](/artifact/l1/L1-022)
> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.45 · **Delta tier:** 5
> **⛓ On-chain block:** 41554171
---
## 1. Domain Ω
**Type:** `range`
| Parameter | Unit | Range |
|---|---|---|
| H | px | 256 – 4096 |
| W | px | 256 – 4096 |
| Z | — | 16 – 256 |
| Na | — | 0.8 – 1.45 |
| Pixel nm | nm | 50 – 300 |
| Pinhole au | — | 0.5 – 3.0 |
| Peak photons | photons | 30 – 3000 |
| Disk speed jitter | — | 0.0 – 0.05 |
| Pinhole crosstalk | — | 0.0 – 0.15 |
| Disk pattern registration | — | 0.0 – 0.1 |
## 2. Tolerance (ε)
**Type:** `fn`
```
21.0 + 1.8 * log10(peak_photons / 30) - 10.0 * pinhole_crosstalk
```
## 3. Difficulty
| Property | Value |
|---|---|
| Difficulty score | 0.45 |
| Delta tier | 5 |
## 4. Fingerprint
`f078543f84f9e35efb865ee31f128a6cebdcf0c56491498c762a5a1e1d8da623`
## 5. On-chain Registration
- **Chain hash:** `0x6ccf92f4ef66e9850c710f034b6ea9b0fcd542999dbc1655a1cf2015cbdf94de`
- **Chain tx hash:** `0x6ba37b850b6f24ebaa5f55918f74c74cd3bb50d7f5d905d686c1849a64eb56cd`
- **Chain block:** `41554171`
---
## File Mapping
This bundle consists of: `L2-022-001.md`, `L2-022-001.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-022-001.md` | Source of truth — edit this | Human or LLM |
| `L2-022-001.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 `L2-022-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._