# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-268-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-268-001`](/artifact/l2/L2-268-001) · ⬆ Principle [`L1-268`](/artifact/l1/L1-268)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `22.0`
> **📊 Baselines:** 3 reference solvers benchmarked
> **⛓ On-chain block:** 41554056
---
## 🏷 1. Benchmark Profile
**Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
## 2. Operating Point (Ω-tier)
| Parameter | Unit | Value |
|---|---|---|
| Snr db | dB | 30 |
| N fluid | — | 10000 |
| N freqs | — | 64 |
| N struct | — | 10000 |
| Mesh error | — | 0 |
| Coupling error | — | 0 |
| Fluid impedance error | — | 0 |
| Structural damping error | — | 0 |
## 3. Success Threshold (ε)
`ε = 22.0`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| FEM-BEM-direct | PSNR_dB | 20.5 | 0.88 | — | — |
| SEA | PSNR_dB | 22.0 | 0.88 | — | — |
| Hybrid-FEM-NN | PSNR_dB | 23.5 | 0.88 | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.14 |
| Rho | 1 |
| Principle id | L1-268 |
| Spec id | L2-268-001 |
**Benchmark hash:** `f5193c012a1317603860cadca824fa253956f41822b0ff17a86b90f9dae753e3`
## 6. On-chain Registration
- **Chain hash:** `0x5e4d3b7a8e343d178c1ff5774d79b3020e4222370daf9a14a54bc9f06d2c647d`
- **Chain tx hash:** `0xeda0af77d5e172f75f54aa16b10e0745345293fd15abfc61497af2589da214dc`
- **Chain block:** `41554056`
---
## File Mapping
This bundle consists of: `L3-268-001-001-T1.md`, `L3-268-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-268-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-268-001-001-T1.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 `L3-268-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._