Pith Number

pith:PVVGPF7L

pith:1998:PVVGPF7L2MTXCSLGSBO4S3PIQA

not attested not anchored not stored refs pending

Optical Continuum and Emission-Line Variability of Seyfert 1 Galaxies

Bradley M. Peterson, Ignaz Wanders, James F. Hunley, Ray Bertram, Richard W. Pogge, R. Mark Wagner

arxiv:astro-ph/9802104 v1 · 1998-02-09 · 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{PVVGPF7L2MTXCSLGSBO4S3PIQA}

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

2 papers in Pith

OzSSy1: The Australian Southern Seyfert-1 Spectroscopic Atlas and Catalogue at z < 0.1

Understanding the Broad-line Region of Active Galactic Nuclei with Photoionization. II. Slim disks, Self-shadowing, and BLR sizes

Receipt and verification

First computed	2026-07-04T16:06:09.077195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d6a6797ebd327714966905dc96de8800e8009b588409fb1f62b826e4f349883

Aliases

arxiv: astro-ph/9802104 · arxiv_version: astro-ph/9802104v1 · doi: 10.48550/arxiv.astro-ph/9802104 · pith_short_12: PVVGPF7L2MTX · pith_short_16: PVVGPF7L2MTXCSLG · pith_short_8: PVVGPF7L

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/PVVGPF7L2MTXCSLGSBO4S3PIQA \
  | 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: 7d6a6797ebd327714966905dc96de8800e8009b588409fb1f62b826e4f349883

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a30e5173ffb625e9e4b62878a3c219e2ba4a3621d96b7c4e8ece7f60e7550f38",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-02-09T16:23:26Z",
    "title_canon_sha256": "73e224fad7f6c4c6574359e0023a28aea191ff407743bc25b157e7ed1fbb800c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9802104",
    "kind": "arxiv",
    "version": 1
  }
}