# ☆  L3 Benchmark — T1_nominal

**ID:** `L3-157-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-157-001`](/artifact/l2/L2-157-001) · ⬆ Principle [`L1-157`](/artifact/l1/L1-157)

> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `24.0`
> **📊 Baselines:** 3 reference solvers benchmarked
> **⛓ On-chain block:** 41554250

---

## 🏷 1. Benchmark Profile

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

## 2. Operating Point (Ω-tier)

| Parameter | Unit | Value |
|---|---|---|
| H | px | 256 |
| W | px | 256 |
| Z | — | 128 |
| Snr db | dB | 22 |
| Truncation | — | 0 |
| Motion between scans | — | 0 |
| Susceptibility distortion | — | 0 |
| Mr based attenuation error | — | 0 |

## 3. Success Threshold (ε)

`ε = 24.0`

## 4. Baseline Solvers

| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| Segment-AC | — | 21.5 | 0.88 | — | — |
| Dixon-AC | — | 24.0 | 0.88 | — | — |
| DeepAC-PET-MR | — | 26.5 | 0.88 | — | — |

## 5. Registration Metadata

| Property | Value |
|---|---|
| D ibench | 0.14 |
| Rho | 1 |
| Principle id | L1-157 |
| Spec id | L2-157-001 |

**Benchmark hash:** `31167d7a84b2da2fc29e92fc2cfa4fad88102278a895cb9817223c0f2ca1aa35`

## 6. On-chain Registration

- **Chain hash:** `0x7750971cd96d0853c3f9afd5699c093f8079ab0a7da052ec26de12be31e133d5`
- **Chain tx hash:** `0xf190ff8f56fbae1502735b983785ddb7fd7d0d8a7d249dc2561b1785410f7db4`
- **Chain block:** `41554250`

---

## File Mapping

This bundle consists of: `L3-157-001-001-T1.md`, `L3-157-001-001-T1.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-157-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-157-001-001-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 `L3-157-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._