# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-422-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-422-001`](/artifact/l2/L2-422-001) · ⬆ Principle [`L1-422`](/artifact/l1/L1-422)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `0.5`
> **📊 Baselines:** 2 reference solvers benchmarked
> **⛓ On-chain block:** 41555245
---
## 🏷 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 |
|---|---|---|
| D50 mm | mm | 2 |
| N measurements | — | 100 |
| Discharge m3 s | s | 500 |
| Armoring effect | — | 0 |
| Critical shields tau*c | — | 0.047 |
| Wash load contamination | — | 0 |
| Non uniform grain size distribution | — | 0 |
## 3. Success Threshold (ε)
`ε = 0.5`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| MPM_formula | bedload_flux_RMSE_log | 0.6 | 0.96 | — | — |
| van_Rijn_transport | bedload_flux_RMSE_log | 0.45 | 0.72 | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.15 |
| Rho | 1 |
| Principle id | L1-422 |
| Spec id | L2-422-001 |
**Benchmark hash:** `cfaa08f23cbdfe972f543bdad8a08e9c05465eeea0b22e310db54a113f29da11`
## 6. On-chain Registration
- **Chain hash:** `0x147428d5c81a80bae8548d9450e6d78e5a71f56f51e46485430d7642d3fb6547`
- **Chain tx hash:** `0xc69b9bbac4bc88264af6d90d861c92713ecea2740db42814964fb33c8881212f`
- **Chain block:** `41555245`
---
## File Mapping
This bundle consists of: `L3-422-001-001-T1.md`, `L3-422-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-422-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-422-001-001-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 `L3-422-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._