Pith Number

pith:LX347VCN

pith:2009:LX347VCNKUKPHMLCQVD6K3T4GX

not attested not anchored not stored refs pending

The Role of Molecular Gas in Obscuring Seyfert Active Galactic Nuclei

(2) UC Los Angeles, 3), (3) UC Berkeley, (4) Tel Aviv University), A. Sternberg (4) ((1) Max Planck Institute for Extraterrestrial Physics, E. K. S. Hicks (1), F. Muller Sanchez (1), L. J. Tacconi (1), M. A. Malkan (2), R. Genzel (1, R. I. Davies (1)

arxiv:0902.0978 v2 · 2009-02-05 · astro-ph.GA · 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{LX347VCNKUKPHMLCQVD6K3T4GX}

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	2026-05-18T04:29:16.807435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5df7cfd44d5514f3b1628547e56e7c35c5594299b0a71aa44191aec6cde04fca

Aliases

arxiv: 0902.0978 · arxiv_version: 0902.0978v2 · doi: 10.48550/arxiv.0902.0978 · pith_short_12: LX347VCNKUKP · pith_short_16: LX347VCNKUKPHMLC · pith_short_8: LX347VCN

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/LX347VCNKUKPHMLCQVD6K3T4GX \
  | 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: 5df7cfd44d5514f3b1628547e56e7c35c5594299b0a71aa44191aec6cde04fca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d38f8b6e9fad0450796c50dac68ec7abfafc8c48219f27f3f7d0f49e4d49458",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-02-05T21:53:19Z",
    "title_canon_sha256": "241874d3c1e02b15e0bbd4ebac31ecae8aea6627708e000af3867f3391006995"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0978",
    "kind": "arxiv",
    "version": 2
  }
}