Pith Number

pith:RNBHEAXW

pith:2011:RNBHEAXWNP3YLLKWWBDY57WTRG

not attested not anchored not stored refs pending

The Demographics of Broad-Line Quasars in the Mass-Luminosity Plane. I. Testing FWHM-Based Virial Black Hole Masses

Brandon C. Kelly (CfA), Yue Shen

arxiv:1107.4372 v2 · 2011-07-21 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RNBHEAXWNP3YLLKWWBDY57WTRG}

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.

Receipt and verification

First computed	2026-05-18T02:01:11.739726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b427202f66bf785ad56b0478efed389a283266991564ceb278abde4e5af945e

Aliases

arxiv: 1107.4372 · arxiv_version: 1107.4372v2 · doi: 10.48550/arxiv.1107.4372 · pith_short_12: RNBHEAXWNP3Y · pith_short_16: RNBHEAXWNP3YLLKW · pith_short_8: RNBHEAXW

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/RNBHEAXWNP3YLLKWWBDY57WTRG \
  | 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: 8b427202f66bf785ad56b0478efed389a283266991564ceb278abde4e5af945e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4b0fb9d99d986f8f37ae9205670b65f27fc62d17072ee070f9b0113234d7827",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-21T20:21:00Z",
    "title_canon_sha256": "c640b262e480847c522e73f0dff1f714bf6a68f1db2a664c5f812f5b4c12cae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4372",
    "kind": "arxiv",
    "version": 2
  }
}