# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-419-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-419-001`](/artifact/l2/L2-419-001) · ⬆ Principle [`L1-419`](/artifact/l1/L1-419)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `0.3`
> **📊 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 |
|---|---|---|
| N argo profiles | — | 3000 |
| N vertical levels | — | 50 |
| Assimilation years | — | 26 |
| Forcing uncertainty | — | 0 |
| Horizontal resolution deg | deg | 1 |
| Observational coverage gaps | — | 0 |
| Mixing parameterization error | — | 0 |
## 3. Success Threshold (ε)
`ε = 0.3`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| ECCO_v4r4 | temperature_RMSE_K | 0.35 | 0.93 | — | — |
| EN4_climatology | temperature_RMSE_K | 0.5 | 1.33 | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.15 |
| Rho | 1 |
| Principle id | L1-419 |
| Spec id | L2-419-001 |
**Benchmark hash:** `43814431e89e81c1188b6f8412cefc942f724cef3af637c0caa96ceb2608d5e1`
## 6. On-chain Registration
- **Chain hash:** `0x291ff9e3776e0b310bb02afcca11aaddb503c38927fba57a474fd9bfcbc6a3e7`
- **Chain tx hash:** `0xfd4d4f1c9389f2a5864f18a77bfb8918090e32917630a186c0656f38140f4192`
- **Chain block:** `41555244`
---
## File Mapping
This bundle consists of: `L3-419-001-001-T1.md`, `L3-419-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-419-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-419-001-001-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 `L3-419-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._