Pith Number

pith:37F3JYDY

pith:2025:37F3JYDYNBPZQ5QQVPRLZ66HE6

not attested not anchored not stored refs pending

A direct black hole mass measurement in a Little Red Dot at the Epoch of Reionization

Alessandro Marconi, Alessandro Trinca, Andrew Fabian, Andrew J. Bunker, Boyuan Liu, Brant Robertson, Cosimo Marconcini, Debora Sijacki, Eiichi Egami, Eleonora Parlanti, Francesco D'Eugenio, Gareth C. Jones, Giovanni Cresci, Giovanni Mazzolari, Hannah \"Ubler, Ignas Juod\v{z}balis, Jake S. Bennett, Jan Scholtz, Jianwei Lyu, Joris Witstok, Kohei Inayoshi, Lucy Ivey, Marta Volonteri, Michele Perna, Nicolas Laporte, Pablo G. P\'erez-Gonz\'alez, Pratika Dayal, Raffaella Schneider, Roberto Maiolino, Rosa Valiante, Saiyang Zhang, Sandro Tacchella, Santiago Arribas, Sophie Koudmani, Stefano Carniani, St\'ephane Charlot, Stephanie Monty, Volker Bromm, Xihan Ji, Yuki Isobe

arxiv:2508.21748 v2 · 2025-08-29 · 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{37F3JYDYNBPZQ5QQVPRLZ66HE6}

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

6 papers in Pith

Evidence for Intermediate-Mass Black Holes From Microlensing Signatures in CHIME/FRB catalog 2

On the quenching of LRD X-ray emission by both Compton-thick gas and high accretion rates

Axions explain the formation of supermassive black holes at cosmic dawn

Strong Gravitational Lensing with the James Webb Space Telescope

Testing the BH$^*$ Model: a UV-to-Optical Spectral Fitting of The Cliff

Receipt and verification

First computed	2026-06-01T01:02:19.818652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfcbb4e078685f987610abe2bcfbc72795700c59547c38b7e27934fa7cf98cbd

Aliases

arxiv: 2508.21748 · arxiv_version: 2508.21748v2 · doi: 10.48550/arxiv.2508.21748 · pith_short_12: 37F3JYDYNBPZ · pith_short_16: 37F3JYDYNBPZQ5QQ · pith_short_8: 37F3JYDY

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/37F3JYDYNBPZQ5QQVPRLZ66HE6 \
  | 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: dfcbb4e078685f987610abe2bcfbc72795700c59547c38b7e27934fa7cf98cbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fd954cfdb5386754a9559b8cc7cb04853907035e81245056cb7b3f24c292c11",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-08-29T16:20:50Z",
    "title_canon_sha256": "7b5241f109f4a3db4887e21fe02da45cd993ccee193505acec86b90e13faf74a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.21748",
    "kind": "arxiv",
    "version": 2
  }
}