Pith Number

pith:2VCYTUFG

pith:2012:2VCYTUFGBLEMEZS4GSKORFD3XZ

not attested not anchored not stored refs pending

The Demographics of Broad Line Quasars in the Mass-Luminosity Plane II. Black Hole Mass and Eddington Ratio Functions

Brandon C. Kelly (UCSB), Yue Shen (CfA)

arxiv:1209.0477 v2 · 2012-09-03 · 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{2VCYTUFGBLEMEZS4GSKORFD3XZ}

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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

2 papers in Pith

Understanding the Broad-line Region of Active Galactic Nuclei with Photoionization. II. Slim disks, Self-shadowing, and BLR sizes

Unification models of Active Galactic Nuclei

Receipt and verification

First computed	2026-05-18T01:54:47.822690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d54589d0a60ac8c2665c3494e8947bbe7ff1026b57cd07b9c9599502c135b0e6

Aliases

arxiv: 1209.0477 · arxiv_version: 1209.0477v2 · doi: 10.48550/arxiv.1209.0477 · pith_short_12: 2VCYTUFGBLEM · pith_short_16: 2VCYTUFGBLEMEZS4 · pith_short_8: 2VCYTUFG

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/2VCYTUFGBLEMEZS4GSKORFD3XZ \
  | 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: d54589d0a60ac8c2665c3494e8947bbe7ff1026b57cd07b9c9599502c135b0e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7fa7ba977b36cb27ca607b19eb45064dec83bd659082bd7410b19bffbb6d1cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-03T20:11:27Z",
    "title_canon_sha256": "df2fa12ca30dded467ef96b8e5ae3da72741ead09aadb690683a8372fc60c5ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0477",
    "kind": "arxiv",
    "version": 2
  }
}