Pith Number

pith:ND6PZHS4

pith:2009:ND6PZHS4ZJDPT5ZTLIQ4YMEPBE

not attested not anchored not stored refs pending

The Lick AGN Monitoring Project: Photometric Light Curves and Optical Variability Characteristics

(10) Princeton University Observatory, (11) Dept. of Physics, 12), (12) Dept. of Astronomy, 13) ((1) Dept. of Physics, (13) Research Center for the Early Universe, (2) Institute of Astronomy, (3) Dept. of Physics, 4), (4) Las Cumbres Observatory Global Telescope, (5) Dept. of Astronomy, (6) Jet Propulsion Laboratory, (7) Dept. of Physics, 8), (8) Institute of Geophysics, (9) Lick Observatory, Aaron J. Barth (1), Alexei V. Filippenko (5), Astronomy, Daniel Stern (6), Elinor L. Gates (9), Gabriela Canalizo (7, Jenny E. Greene (10), Jonelle L. Walsh (1), Jong-Hak Woo (11), Matthew A. Malkan (11), Misty C. Bentz (1), Nairn Baliber (3, Planetary Physics, Rachel A. Street (3, School of Science, Takeo Minezaki (2), Timothy M. Brown (4), Tommaso Treu (3), UC Berkeley, UC Irvine, UCLA, UC Riverside, UC Santa Barbara, University of Tokyo, University of Tokyo), Vardha Nicola Bennert (3), Weidong Li (5), Yu Sakata (2, Yuzuru Yoshii (2

arxiv:0909.5455 v1 · 2009-09-29 · 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{ND6PZHS4ZJDPT5ZTLIQ4YMEPBE}

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	2026-05-18T02:34:20.766446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68fcfc9e5cca46f9f7335a21cc308f091d7592f0ec57376f7d0f3f28712070ed

Aliases

arxiv: 0909.5455 · arxiv_version: 0909.5455v1 · doi: 10.48550/arxiv.0909.5455 · pith_short_12: ND6PZHS4ZJDP · pith_short_16: ND6PZHS4ZJDPT5ZT · pith_short_8: ND6PZHS4

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/ND6PZHS4ZJDPT5ZTLIQ4YMEPBE \
  | 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: 68fcfc9e5cca46f9f7335a21cc308f091d7592f0ec57376f7d0f3f28712070ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5e7f87a8d7baa58cb15ef57a3279088c23e7a4b8023cd983a654c577cd42d40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-29T23:48:22Z",
    "title_canon_sha256": "e5f593f74b49f3da0de3d2ecc4db8ccd0eac7d5e9842ed0e32aa9f0c81abb728"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5455",
    "kind": "arxiv",
    "version": 1
  }
}