# 📐  L2 Spec — Elastodynamics — dynamic wave propagation in solids Mismatch-Only Spec

**ID:** `L2-230-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-230`](/artifact/l1/L1-230)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.48 · **Delta tier:** 5
> **⛓ On-chain block:** 41554025

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| N dof | — | 1000 – 10000000 |
| Snr db | dB | 0 – 40 |
| E error | — | 0.0 – 0.1 |
| N times | — | 100 – 100000 |
| Bc error | — | 0.0 – 0.2 |
| Nu error | — | 0.0 – 0.05 |
| N sensors | — | 4 – 4096 |
| Rho error | — | 0.0 – 0.1 |

## 2. Tolerance (ε)

**Type:** `fn`

```
16.0 + 0.3*SNR_dB - 30.0*rho_error - 30.0*E_error - 20.0*nu_error - 10.0*BC_error
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.48 |
| Delta tier | 5 |

## 4. Fingerprint

`484bd72ada834bd0d664cf3418f89669ebae9cdc217291bb96db2d713ed8ba8d`

## 5. On-chain Registration

- **Chain hash:** `0xe54c34a7901b0cdb285f6df72631d011e24ea9215f5afc8a1d2895b9d427010f`
- **Chain tx hash:** `0x97db14e02663bde26f65b38e27f39116291bba47970c08ec37fdf526b74480b4`
- **Chain block:** `41554025`

---

## File Mapping

This bundle consists of: `L2-230-001.md`, `L2-230-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-230-001.md` | Source of truth — edit this | Human or LLM |
| `L2-230-001.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 `L2-230-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._