Pith Number

pith:WQQKGEVN

pith:2026:WQQKGEVNEOS5CRHSDMTMCNAKQP

not attested not anchored not stored refs pending

A Black Hole Star at Cosmic Noon: Extreme Balmer break, photospheric continuum, and broad absorption by thick winds in a Little Red Dot at z=1.7

Aayush Desai, Aidan P. Cloonan, Alberto Torralba, Andrea Weibel, Anna de Graaff, Christian Kragh Jespersen, Christina C. Williams, Ivan G. Kramarenko, Jenny E. Greene, Jorryt Matthee, Pascal A. Oesch, Rohan P. Naidu, Sara Mascia, Wendy Q. Sun, Yilun Ma

arxiv:2603.28335 v3 · 2026-03-30 · 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{WQQKGEVNEOS5CRHSDMTMCNAKQP}

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

4 papers in Pith

Little Red Dots as Supermassive Analogs of SS 433

Little Red and Blue Dots: AGN-excited narrow lines, Lyman-$\alpha$ emission, and resemblance to standard quasars

Constraints on the Gas Geometry Surrounding Little Red Dots through Narrow-Line Diagnostics

A new sample of Little Red Dots at $z<0.45$ in DESI DR1: Broad Balmer lines, low ionization spectrum and no variability

Receipt and verification

First computed	2026-06-19T16:09:57.581940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b420a312ad23a5d144f21b26c1340a83de32124e76c798b362743de09c08b7b3

Aliases

arxiv: 2603.28335 · arxiv_version: 2603.28335v3 · doi: 10.48550/arxiv.2603.28335 · pith_short_12: WQQKGEVNEOS5 · pith_short_16: WQQKGEVNEOS5CRHS · pith_short_8: WQQKGEVN

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/WQQKGEVNEOS5CRHSDMTMCNAKQP \
  | 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: b420a312ad23a5d144f21b26c1340a83de32124e76c798b362743de09c08b7b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ac164ca05fc575a1dc09e5cbe70c79386d6abd9441909ab05208b4377eaa060",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-03-30T12:05:08Z",
    "title_canon_sha256": "97bc261684b74ab3100bbb81c449adac688757711297aa3a61333a12de1123e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.28335",
    "kind": "arxiv",
    "version": 3
  }
}