Pith Number

pith:V7WFPHGO

pith:2009:V7WFPHGO45YOBGX3VUHVGUQ77R

not attested not anchored not stored refs pending

Strong [O III] Objects Among SDSS Broad-Line Active Galaxies

2, (2) Princeton University, 3), (3) Hubble, Beverley Wills (1), Edward L. Robinson (1) ((1) University of Texas at Austin, Jenny E. Greene (1, Princeton-Carnegie Fellow), Randi R. Ludwig (1)

arxiv:0911.2314 v1 · 2009-11-12 · 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{V7WFPHGO45YOBGX3VUHVGUQ77R}

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	2026-05-18T02:34:11.128242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afec579ccee770e09afbad0f53521ffc6ebbc3e6d071f3a11e1aa3c00656fdd1

Aliases

arxiv: 0911.2314 · arxiv_version: 0911.2314v1 · doi: 10.48550/arxiv.0911.2314 · pith_short_12: V7WFPHGO45YO · pith_short_16: V7WFPHGO45YOBGX3 · pith_short_8: V7WFPHGO

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/V7WFPHGO45YOBGX3VUHVGUQ77R \
  | 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: afec579ccee770e09afbad0f53521ffc6ebbc3e6d071f3a11e1aa3c00656fdd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a03522895738b3bbfd69b53f4794cbdb1e28b0847272f7fb924e4c00198468d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-12T18:26:00Z",
    "title_canon_sha256": "6f529251c2cca4932fd796fa01b60b6e70e65b63e570c51b7fdca7971306dee1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2314",
    "kind": "arxiv",
    "version": 1
  }
}