# 📐 L2 Spec — Confocal Z-Stack (3D axial deconvolution) Mismatch-Only Spec
**ID:** `L2-533-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-533`](/artifact/l1/L1-533)
> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.45 · **Delta tier:** 5
> **⛓ On-chain block:** 41555321
---
## 1. Domain Ω
**Type:** `range`
| Parameter | Unit | Range |
|---|---|---|
| H | px | 128 – 2048 |
| W | px | 128 – 2048 |
| Z | — | 16 – 512 |
| Na | — | 0.8 – 1.45 |
| Pixel nm | nm | 50 – 300 |
| Z step nm | nm | 100 – 2000 |
| Peak photons | photons | 20 – 2000 |
| Z step error | — | 0.0 – 0.2 |
| Spherical aberration | — | 0.0 – 0.5 |
## 2. Tolerance (ε)
**Type:** `fn`
```
20.0 + 1.5 * log10(peak_photons / 20) + 1.0 * log2(Z / 16) - 6.0 * spherical_aberration
```
## 3. Difficulty
| Property | Value |
|---|---|
| Difficulty score | 0.45 |
| Delta tier | 5 |
## 4. Fingerprint
`498d31ea5b445c8abdc1b2b78d535ca378336f7101f8575e8cc19def43b06062`
## 5. On-chain Registration
- **Chain hash:** `0x5c941bc12751b7e46d25d0d4d909b85163a83c26e25d3bede922c408c54b7cab`
- **Chain tx hash:** `0xfe580c26b5d0ac5207d6db377824ed4023e3d62e833241ffd4cf76a42b0cbc43`
- **Chain block:** `41555321`
---
## File Mapping
This bundle consists of: `L2-533-001.md`, `L2-533-001.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-533-001.md` | Source of truth — edit this | Human or LLM |
| `L2-533-001.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 `L2-533-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._