Pith Number

pith:PSLS4ZLF

pith:2025:PSLS4ZLFNZXSYDAADEG6MJYDXC

not attested not anchored not stored refs pending

The $z=7.08$ quasar ULAS J1120+0641 May Never Reach a "Normal" Black Hole to Stellar Mass Ratio

George H. Rieke, Jianwei Lyu, Kevin N. Hainline, Meredith A. Stone, Michael K. Florian, Yang Sun, Yongda Zhu

arxiv:2507.13489 v3 · 2025-07-17 · 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{PSLS4ZLFNZXSYDAADEG6MJYDXC}

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

1 paper in Pith

A New Record Census of Dwarf AGN and a Bimodal $M_{\rm BH}$-$M_{\star}$ Scaling Relation with DESI DR1

Receipt and verification

First computed	2026-07-05T11:54:49.426814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c972e65656e6f2c0c00190de62703b8b0e768b6a99b3977bb5aaf049e1ce1ac

Aliases

arxiv: 2507.13489 · arxiv_version: 2507.13489v3 · doi: 10.48550/arxiv.2507.13489 · pith_short_12: PSLS4ZLFNZXS · pith_short_16: PSLS4ZLFNZXSYDAA · pith_short_8: PSLS4ZLF

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/PSLS4ZLFNZXSYDAADEG6MJYDXC \
  | 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: 7c972e65656e6f2c0c00190de62703b8b0e768b6a99b3977bb5aaf049e1ce1ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af4559e27ac82653eb7eaf43b222568768c2d8a8de4b0f631cb6654c7c5217d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-17T18:56:05Z",
    "title_canon_sha256": "b61d265f493e8e9b750ed8495730a937e10069c81f31c557662b929f79a7e3c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.13489",
    "kind": "arxiv",
    "version": 3
  }
}