# ☆ L3 Benchmark — T1_nominal
**ID:** `L3-331-001-001-T1` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Spec [`L2-331-001`](/artifact/l2/L2-331-001) · ⬆ Principle [`L1-331`](/artifact/l1/L1-331)
> **🏷 Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
> **🎯 Threshold (ε):** `0.04`
> **📊 Baselines:** 3 reference solvers benchmarked
> **⛓ On-chain block:** 41554135
---
## 🏷 1. Benchmark Profile
**Type:** `fixed` · **Tier:** `T1` · **Quality:** `standard`
Grain Growth and Recrystallization at rho=1.
## 2. Operating Point (Ω-tier)
| Parameter | Unit | Value |
|---|---|---|
| T k | — | 1000 |
| Grid n | N | 256 |
| F pinning | — | 0 |
| T anneal s | s | 100 |
| Initial grains | — | 10000 |
## 3. Success Threshold (ε)
`ε = 0.04`
## 4. Baseline Solvers
| Name | Metric | Score | Q | SSIM | SAM° |
|---|---|---|---|---|---|
| Dream3D + Potts | — | 0.07 | 0.82 | — | — |
| PRISMS-Grain | — | 0.08 | 0.78 | — | — |
| GrainNet | — | 0.045 | 0.92 | — | — |
## 5. Registration Metadata
| Property | Value |
|---|---|
| D ibench | 0.15 |
| Rho | 1 |
| Principle id | L1-331 |
| Spec id | L2-331-001 |
**Benchmark hash:** `90c90fcd5c89f27894bdbbe7d11794a59919538907e68fa13e9571e1160db86f`
## 6. On-chain Registration
- **Chain hash:** `0x096ecbfcbca7de0a211fddf7f13de5ea7ee680c116038cd4e612335575e75e63`
- **Chain tx hash:** `0x6d20ab13e62a5b53e4e434f60516b07ecec4ed3a18fd3760f18f4b9c7526c07b`
- **Chain block:** `41554135`
---
## File Mapping
This bundle consists of: `L3-331-001-001-T1.md`, `L3-331-001-001-T1.json`.
| File | Role | How to regenerate |
|------|------|-------------------|
| `L3-331-001-001-T1.md` | Source of truth — edit this | Human or LLM |
| `L3-331-001-001-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 `L3-331-001-001-T1`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._