# ☆  L3 Benchmark — T1_nominal

**ID:** `L3-120-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-120-001`](/artifact/l2/L2-120-001) · ⬆ Principle [`L1-120`](/artifact/l1/L1-120)

> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `26.0`
> **📊 Baselines:** 3 reference solvers benchmarked
> **⛓ On-chain block:** 41554218

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## 🏷 1. Benchmark Profile

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

## 2. Operating Point (Ω-tier)

| Parameter | Unit | Value |
|---|---|---|
| H | px | 512 |
| W | px | 512 |
| Z | — | 64 |
| F mhz | MHz | 100 |
| Snr db | dB | 25 |
| Pixel um | µm | 10 |
| Surface curvature | — | 0 |
| Multiple reflections | — | 0 |
| Water path attenuation | — | 0 |
| Coupling fluid variation | — | 0 |

## 3. Success Threshold (ε)

`ε = 26.0`

## 4. Baseline Solvers

| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| TOF-Gating | — | 23.5 | 0.88 | — | — |
| SAFT | — | 26.0 | 0.88 | — | — |
| SAM-CNN | — | 28.5 | 0.88 | — | — |

## 5. Registration Metadata

| Property | Value |
|---|---|
| D ibench | 0.14 |
| Rho | 1 |
| Principle id | L1-120 |
| Spec id | L2-120-001 |

**Benchmark hash:** `b8d5e89172e59dd6d1629db94ab08fde16bcb2cf1a53221403c50ee28461b8dd`

## 6. On-chain Registration

- **Chain hash:** `0x27bb542d4d39219fd90e4b1240f191e257e69a0901cbc8a1dd14b2bfc41eaf6c`
- **Chain tx hash:** `0x23f3bc00b38bc8e1ecb2086369a813b705f6d8869573480504df21bdb2a34a20`
- **Chain block:** `41554218`

---

## File Mapping

This bundle consists of: `L3-120-001-001-T1.md`, `L3-120-001-001-T1.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-120-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-120-001-001-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 `L3-120-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._