Pith Number

pith:PYA2E4BX

pith:2009:PYA2E4BX6UT6KCZE5I42Q5YOEJ

not attested not anchored not stored refs pending

Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-Selected Sample of the SDSS Fall Equatorial Stripe

(2) The Ohio State University), M. Vestergaard (1), Patrick S. Osmer (2) ((1) Tufts University

arxiv:0904.3348 v1 · 2009-04-21 · 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{PYA2E4BX6UT6KCZE5I42Q5YOEJ}

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

Particle Acceleration, Coronal Neutrino Production, and the Diffuse Extragalactic Neutrino Background from Supermassive Black Holes

Receipt and verification

First computed	2026-05-18T04:29:43.360471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e01a27037f527e50b24ea39a8770e227bbc9fe661dd98c573a7d8864869324b

Aliases

arxiv: 0904.3348 · arxiv_version: 0904.3348v1 · doi: 10.48550/arxiv.0904.3348 · pith_short_12: PYA2E4BX6UT6 · pith_short_16: PYA2E4BX6UT6KCZE · pith_short_8: PYA2E4BX

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/PYA2E4BX6UT6KCZE5I42Q5YOEJ \
  | 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: 7e01a27037f527e50b24ea39a8770e227bbc9fe661dd98c573a7d8864869324b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b267354f3e61a703f6dde28d90a5b068b2103e0d7e7eb4f8b947bb9093712c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-21T21:34:10Z",
    "title_canon_sha256": "a3f99014ca1e555693ca72edf79c793a795a7734126e7acaae83b14f3ee10a6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3348",
    "kind": "arxiv",
    "version": 1
  }
}