# 📐  L2 Spec — Butler-Volmer Electrochemical Kinetics Mismatch-Only Spec

**ID:** `L2-311-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-311`](/artifact/l1/L1-311)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.45 · **Delta tier:** 5
> **⛓ On-chain block:** 41554130

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| T k | — | 253 – 373 |
| N data | — | 20 – 5000 |
| Electrolyte | — | aqueous, organic, ionic_liquid, molten_salt |
| Eta range v max | — | 0.1 – 2.0 |

## 2. Tolerance (ε)

**Type:** `fn`

```
0.05 * (1 + 0.1 * mismatch_severity)
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.45 |
| Delta tier | 5 |

## 4. Fingerprint

`0e2162907aa831e485742b225160bc1fb48fac044bb0d94bc19e00fd5a01f86a`

## 5. On-chain Registration

- **Chain hash:** `0xb3c1c76bfa58b24ed38bc4bead0de0a08f666680a809a846770d1c6d56752020`
- **Chain tx hash:** `0x660b64dd49978626c6faa5ad0eace7a27c7825e2182fe8bf40b9a688f94b43b1`
- **Chain block:** `41554130`

---

## File Mapping

This bundle consists of: `L2-311-001.md`, `L2-311-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-311-001.md` | Source of truth — edit this | Human or LLM |
| `L2-311-001.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 `L2-311-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._