Pith. sign in
Pith Number

pith:IK35AKOK

pith:2025:IK35AKOKQV4XC3BW7C4JCGWTDE
not attested not anchored not stored refs pending

A remarkable Ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a Little Red Dot at $z=3.5$

Andrea Weibel, Andy D. Goulding, Anna de Graaff, Bingjie Wang, Christina C. Williams, David J. Setton, Erica Nelson, Gabriel Brammer, Hans-Walter Rix, Harley Katz, Ian McConachie, Irene Shivaei, Ivo Labbe, Jenny E. Greene, Joel Leja, Jorryt Matthee, Josephine Baggen, Katherine E. Whitaker, Leindert A. Boogaard, Michaela Hirschmann, Michael V. Maseda, Pascal A. Oesch, Pieter van Dokkum, Pratika Dayal, Rachel Bezanson, Raphael E. Hviding, Rohan P. Naidu, Tim B. Miller

arxiv:2503.16600 v2 · 2025-03-20 · 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{IK35AKOKQV4XC3BW7C4JCGWTDE}

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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

6 papers in Pith

JWST's Little Red Dots as collapsed Supermassive Dark Stars
No evolution in the number density of little red dots from cosmic dawn to cosmic noon
(LRDs)$^2$: The Low-ReDshift Little Red Dots Survey. II. DESI DR1 Sample
The X-ray weakness of Little Red Dots and JWST-selected AGN: comparison with local AGN in different accretion regimes
Paschen Jumps in Little Red Dots: Evidence for Nebular Continua
Receipt and verification
First computed 2026-07-05T12:07:37.553073Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

42b7d029ca8579716c36f8b8911ad31922a993dab12cfd7231acbecee4d3d1c8

Aliases

arxiv: 2503.16600 · arxiv_version: 2503.16600v2 · doi: 10.48550/arxiv.2503.16600 · pith_short_12: IK35AKOKQV4X · pith_short_16: IK35AKOKQV4XC3BW · pith_short_8: IK35AKOK
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/IK35AKOKQV4XC3BW7C4JCGWTDE \
  | 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: 42b7d029ca8579716c36f8b8911ad31922a993dab12cfd7231acbecee4d3d1c8
Canonical record JSON 
{
  "metadata": {
    "abstract_canon_sha256": "680e197e3a97343116db7b58ed3d7652bfc1e1fa4d6ec7ebae902781bd34a441",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-03-20T18:00:00Z",
    "title_canon_sha256": "c15510aff4d5f8f9944d2a41f96b89b99c002656f61211b6ccdec6f7adb381af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.16600",
    "kind": "arxiv",
    "version": 2
  }
}