Pith Number

pith:WWO2AWLD

pith:2025:WWO2AWLDHGXVB5SF2YZD56U3D3

not attested not anchored not stored refs pending

Optical Strong Line Ratios Cannot Distinguish Between Stellar Populations and Accreting Black Holes at High Ionization Parameters and Low Metallicities

Antonello Calabro, Anton M. Koekemoer, Bren E. Backhaus, Casey Papovich, Dale D. Kocevski, Denis Burgarella, Emilie Burnham, Grace M. Olivier, Joel Leja, Jonathan H. Cohn, Jonathan R. Trump, Justin W. Cole, Kelcey Davis, Lise-Marie Seille, Mark Dickinson, Michaela Hirschmann, Michael V. Maseda, Nikko J. Cleri, Pablo Arrabal Haro, Ray Garner III, Raymond C. Simons, Rebecca L. Larson, Steven L. Finkelstein, Taylor A. Hutchison, Veronique Buat, Weida Hu, Zach J. Lewis

arxiv:2506.21660 v1 · 2025-06-26 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWO2AWLDHGXVB5SF2YZD56U3D3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

2 papers in Pith

Hunting Wandering 3<z<8 Black Holes: via Spatial Offsets in Ionization Ratio and Continuum Emission

A massive and evolved slow-rotating galaxy in the early Universe

Receipt and verification

First computed	2026-07-05T11:27:58.375557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b59da0596339af50f645d6323efa9b1ec21f8c8d3206c34a5533b55e5b534670

Aliases

arxiv: 2506.21660 · arxiv_version: 2506.21660v1 · doi: 10.48550/arxiv.2506.21660 · pith_short_12: WWO2AWLDHGXV · pith_short_16: WWO2AWLDHGXVB5SF · pith_short_8: WWO2AWLD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WWO2AWLDHGXVB5SF2YZD56U3D3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b59da0596339af50f645d6323efa9b1ec21f8c8d3206c34a5533b55e5b534670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d38e0d54318e726767d30590e3b1d2b8a785bc61332e643aa3216e8103f08ffa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-26T18:00:00Z",
    "title_canon_sha256": "6b1121d8fc4c7b2d3dc9610b019343002b3710627d08b573368a77becba6d2cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.21660",
    "kind": "arxiv",
    "version": 1
  }
}