# 📐 L2 Spec — Confocal Laser Endomicroscopy (CLE) Mismatch-Only Spec
**ID:** `L2-064-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-064`](/artifact/l1/L1-064)
> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.5 · **Delta tier:** 5
> **⛓ On-chain block:** 41553389
---
## 1. Domain Ω
**Type:** `range`
| Parameter | Unit | Range |
|---|---|---|
| H | px | 256 |
| W | px | 256 |
| Na | — | 0.5 – 1.2 |
| F mhz | MHz | 0.1 – 10 |
| Motion | — | 0.0 – 0.5 |
| Pixel um | µm | 0.5 – 5.0 |
| Peak photons | photons | 20 – 2000 |
| Photobleaching | — | 0.0 – 0.5 |
| Tissue contact pressure | — | 0.0 – 0.3 |
| Fluorophore uptake variation | — | 0.0 – 0.3 |
## 2. Tolerance (ε)
**Type:** `fn`
```
18.0 + 1.5 * log10(peak_photons / 20) - 10.0 * motion - 8.0 * photobleaching
```
## 3. Difficulty
| Property | Value |
|---|---|
| Difficulty score | 0.5 |
| Delta tier | 5 |
## 4. Fingerprint
`69d860e3fc69feaf83f0f227c8736419f64c1e30cd1c8a7c7f1408035f055bd0`
## 5. On-chain Registration
- **Chain hash:** `0x39b58d7677fef382b2a2d0457a3112274b372cc15a91f4995e62de5a2f015f25`
- **Chain tx hash:** `0x16032394e915ce05a6c0ac2b7605fa47cfeb95b72301a0eb817a31c27414a140`
- **Chain block:** `41553389`
---
## File Mapping
This bundle consists of: `L2-064-001.md`, `L2-064-001.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-064-001.md` | Source of truth — edit this | Human or LLM |
| `L2-064-001.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 `L2-064-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._