# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-507-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-507-001`](/artifact/l2/L2-507-001) · ⬆ Principle [`L1-507`](/artifact/l1/L1-507)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `[NEEDS_HAND_AUTHORING: nominal-tier threshold value]`
> **📊 Baselines:** 1 reference solvers benchmarked
> **⛓ On-chain block:** 41553365
---
## 🏷 1. Benchmark Profile
**Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
[NEEDS_HAND_AUTHORING: nominal-tier dataset description]
## 2. Operating Point (Ω-tier)
| Parameter | Unit | Value |
|---|---|---|
| Snr db | dB | 20 |
| N dipoles | — | 8000 |
| T samples | — | 1000 |
| N eeg channels | — | 64 |
| N meg channels | — | 306 |
| Head layer count | — | 3 |
| Sampling rate hz | Hz | 1000 |
| Sensor position error | — | 0 |
| Head segmentation error | — | 0 |
| Conductivity uncertainty | — | 0 |
| Reference electrode drift | — | 0 |
| Source orientation assumption | — | cortically_constrained |
| Magnetic artifact contamination | — | 0 |
## 3. Success Threshold (ε)
`ε = [NEEDS_HAND_AUTHORING: nominal-tier threshold value]`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| [NEEDS_HAND_AUTHORING] | PSNR_dB | None | None | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.15 |
| Rho | 1 |
| Principle id | L1-507 |
| Spec id | L2-507-001 |
**Benchmark hash:** `e57f1db8c84ecebe91e239656fe99901c18e1dc791c2959e32a772b3fce29d08`
## 6. On-chain Registration
- **Chain hash:** `0x81b8e2f1b027815d852184c6246b5ffe3cd743213a7cdf45614bf4c70690a167`
- **Chain tx hash:** `0x52831222d4a32fdb7cc412bbed5d35dd5c9f97c4cfee5325daf542c45cd7d3b4`
- **Chain block:** `41553365`
---
## File Mapping
This bundle consists of: `L3-507-001-001-T1.md`, `L3-507-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-507-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-507-001-001-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 `L3-507-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._