Pith Number

pith:O6U7EEIB

pith:2008:O6U7EEIBL3EKUMWJ34PAMTF46P

not attested not anchored not stored refs pending

Evidence for an intermediate line region in AGN's inner torus region and its evolution from narrow to broad line Seyfert I galaxies

Ling Zhu, Shuang Nan Zhang, Sumin Tang

arxiv:0807.3992 v4 · 2008-07-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O6U7EEIBL3EKUMWJ34PAMTF46P}

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

On the quenching of LRD X-ray emission by both Compton-thick gas and high accretion rates

Receipt and verification

First computed	2026-05-18T03:45:42.221784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77a9f211015ec8aa32c9df1e064cbcf3ed5226cfef581ac75775cc3783a1a162

Aliases

arxiv: 0807.3992 · arxiv_version: 0807.3992v4 · doi: 10.48550/arxiv.0807.3992 · pith_short_12: O6U7EEIBL3EK · pith_short_16: O6U7EEIBL3EKUMWJ · pith_short_8: O6U7EEIB

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/O6U7EEIBL3EKUMWJ34PAMTF46P \
  | 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: 77a9f211015ec8aa32c9df1e064cbcf3ed5226cfef581ac75775cc3783a1a162

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4dea0c14ec6dc01a14bd8ad8e9954b2d14bbb1e1721b954c5e0ca5893eee096",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-25T17:32:08Z",
    "title_canon_sha256": "beabe36a20cdb5d7e9ef51620a50a29434281acc7181c385dc0410e4799edc77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3992",
    "kind": "arxiv",
    "version": 4
  }
}