# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-104-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-104-001`](/artifact/l2/L2-104-001) · ⬆ Principle [`L1-104`](/artifact/l1/L1-104)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `18.0`
> **📊 Baselines:** 3 reference solvers benchmarked
> **⛓ On-chain block:** 41554204
---
## 🏷 1. Benchmark Profile
**Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
## 2. Operating Point (Ω-tier)
| Parameter | Unit | Value |
|---|---|---|
| F mhz | MHz | 250 |
| Snr db | dB | 15 |
| Clutter | — | 0 |
| N traces | — | 256 |
| N samples | — | 512 |
| Depth range m | m | 10 |
| Antenna coupling | — | 0 |
| Attenuation depth | — | 0.1 |
| Soil permittivity variation | — | 0 |
## 3. Success Threshold (ε)
`ε = 18.0`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| Kirchhoff-Migration | — | 16.5 | 0.88 | — | — |
| Reverse-Time-Migration | — | 18.5 | 0.88 | — | — |
| GPR-Net | — | 21.0 | 0.88 | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.14 |
| Rho | 1 |
| Principle id | L1-104 |
| Spec id | L2-104-001 |
**Benchmark hash:** `cab73345591d315e462ad32369b003af0c142fa19cc8d4d43315555a85abd5e0`
## 6. On-chain Registration
- **Chain hash:** `0xfacfb2438c444e83d7f371e2b0c1bed895c59750eb6802749cff61ceff408d7c`
- **Chain tx hash:** `0xf3c3665d3b9fbb00c1b474e4825c209f7ba0e29e95e5ca8290aa217dc45543be`
- **Chain block:** `41554204`
---
## File Mapping
This bundle consists of: `L3-104-001-001-T1.md`, `L3-104-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-104-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-104-001-001-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 `L3-104-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._