Pith Number

pith:LJIJW56K

pith:2009:LJIJW56K5TOWX77YVFMQS7MPA2

not attested not anchored not stored refs pending

On the Disappearance of the Broad-Line Region in Low-Luminosity Agns

Luis C. Ho, Moshe Elitzur

arxiv:0907.3752 v1 · 2009-07-21 · 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{LJIJW56K5TOWX77YVFMQS7MPA2}

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

7 papers in Pith

Nuclear Activity and Host Galaxy Properties of Low-Luminosity AGN Identified from VLA Observations

A Changing-Look Seyfert Discovered by eROSITA Reveals a Two-Component Broad-Line Region

Tracing Active Galactic Nuclei Properties Through a Changing-look Event

Identifying Changing-Look AGN Transitions in Light Curve Data with the Zwicky Transient Facility

Spectral Evolution and Transient Broad-Line Features in the Isolated AGN UNAM-KIAS 613

Receipt and verification

First computed	2026-05-18T02:12:54.869219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a509b77caecdd6bfff8a959097d8f06ad2cc14c3e7baba83bdca3297ccfd991

Aliases

arxiv: 0907.3752 · arxiv_version: 0907.3752v1 · doi: 10.48550/arxiv.0907.3752 · pith_short_12: LJIJW56K5TOW · pith_short_16: LJIJW56K5TOWX77Y · pith_short_8: LJIJW56K

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/LJIJW56K5TOWX77YVFMQS7MPA2 \
  | 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: 5a509b77caecdd6bfff8a959097d8f06ad2cc14c3e7baba83bdca3297ccfd991

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbf66cfefa7bc90e842cb26ffda6b2d8904b9be38ed61ca745fc98a0c38db9d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-21T21:44:00Z",
    "title_canon_sha256": "37f0020c4d986ad548e12a95f4b34da88347ae037f6e0b5a09d71b39ab44f44f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3752",
    "kind": "arxiv",
    "version": 1
  }
}