# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-418-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-418-001`](/artifact/l2/L2-418-001) · ⬆ Principle [`L1-418`](/artifact/l1/L1-418)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `0.5`
> **📊 Baselines:** 2 reference solvers benchmarked
> **⛓ On-chain block:** 41555244
---
## 🏷 1. Benchmark Profile
**Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
Standard Environmental Science conditions, clean data, calibrated model.
## 2. Operating Point (Ω-tier)
| Parameter | Unit | Value |
|---|---|---|
| Window hours | — | 6 |
| N observations | — | 1000000 |
| Obs error ratio | — | 1 |
| Model resolution km | km | 10 |
| Model error during window | — | 0 |
| Observation bias correction error | — | 0 |
| Background error covariance specification | — | 0 |
## 3. Success Threshold (ε)
`ε = 0.5`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| 3DVar_operational | analysis_error_RMSE_K | 0.7 | 1.12 | — | — |
| 4DVar_ECMWF | analysis_error_RMSE_K | 0.4 | 0.64 | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.15 |
| Rho | 1 |
| Principle id | L1-418 |
| Spec id | L2-418-001 |
**Benchmark hash:** `e2d299605c6e3cdaab39e3a7d176ed126169320cbe6a657d25f3b38ea1103f7c`
## 6. On-chain Registration
- **Chain hash:** `0x00bac5b4e88956be65ca58737ff75f10d7fb87749ff6c8bef9b84923e49c59d0`
- **Chain tx hash:** `0x0b6f5b5e1fa926b7a69561318d8ff4520c730370bfac047e274b10e826f7ab71`
- **Chain block:** `41555244`
---
## File Mapping
This bundle consists of: `L3-418-001-001-T1.md`, `L3-418-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-418-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-418-001-001-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 `L3-418-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._