# 📐  L2 Spec — Arps Decline Curve Analysis — Nominal + Mismatch Specs

**ID:** `L2-464-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-464`](/artifact/l1/L1-464)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.22 · **Delta tier:** 5
> **⛓ On-chain block:** 41555283

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| Q i bopd | — | 10 – 100000 |
| B exponent | — | 0.0 – 2.0 |
| D i per month | — | 0.01 – 0.5 |
| N months history | — | 6 – 120 |

## 2. Tolerance (ε)

**Type:** `fn`

```
10 + 5 * (24 / N_months_history) ** 0.5
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.22 |
| Delta tier | 5 |

## 4. Fingerprint

`716bd9af16555d3467f13d78e4d0753aec069a37e9397f735c8a5de6a092c64b`

## 5. On-chain Registration

- **Chain hash:** `0xd781f94c0aeacfd74d3272a3da0deca6d50b5486dd0083703f0d65ace7a475dd`
- **Chain tx hash:** `0x2d8bceff1cc8a0c627293d44772c0e9b297fa791dfb8dad31c6318ef4b162530`
- **Chain block:** `41555283`

---

## File Mapping

This bundle consists of: `L2-464-001.md`, `L2-464-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-464-001.md` | Source of truth — edit this | Human or LLM |
| `L2-464-001.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 `L2-464-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._