# ☆  L3 Benchmark — T1_nominal

**ID:** `L3-248-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-248-001`](/artifact/l2/L2-248-001) · ⬆ Principle [`L1-248`](/artifact/l1/L1-248)

> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `0.8`
> **📊 Baselines:** 3 reference solvers benchmarked
> **⛓ On-chain block:** 41553996

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## 🏷 1. Benchmark Profile

**Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`

## 2. Operating Point (Ω-tier)

| Parameter | Unit | Value |
|---|---|---|
| H | px | 256 |
| W | px | 256 |
| N iter | — | 500 |
| Snr db | dB | 40 |
| N freqs | — | 16 |
| Source error | — | 0 |
| Material error | — | 0 |
| Fab discretization error | — | 0 |

## 3. Success Threshold (ε)

`ε = 0.8`

## 4. Baseline Solvers

| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| TopOpt-MMA | FOM_rel_score | 0.75 | 0.88 | — | — |
| Density-filter | FOM_rel_score | 0.82 | 0.88 | — | — |
| DL-inverse | FOM_rel_score | 0.85 | 0.88 | — | — |

## 5. Registration Metadata

| Property | Value |
|---|---|
| D ibench | 0.14 |
| Rho | 1 |
| Principle id | L1-248 |
| Spec id | L2-248-001 |

**Benchmark hash:** `cc88bad6a4f9fc96b07be244684fcdcfb67402e4fbc14ed6ad525e3a0b81796d`

## 6. On-chain Registration

- **Chain hash:** `0x526c4383e13bccacd1d40d87c233f759021a24a8deee27dd294ee69f43fbacd1`
- **Chain tx hash:** `0x31092f9cd54396a8be55b77a534c3959672491eb4aa0bf5666e5999c18bc5de5`
- **Chain block:** `41553996`

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## File Mapping

This bundle consists of: `L3-248-001-001-T1.md`, `L3-248-001-001-T1.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-248-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-248-001-001-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 `L3-248-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._