Pith Number

pith:GLLXYXSA

pith:1997:GLLXYXSAIOM5US7QOTAHJJGP7L

not attested not anchored not stored refs pending

BeppoSAX observations of Narrow-Line Seyfert 1 galaxies:I. Ton S 180

A. Comastri, A.N. Parmar, A. Siemiginowska, E.M. Puchnarewicz, F. Fiore, G. Matt, G.M. Stirpe, G. Zamorani, K.M. Leighly, L. Piro, M. Guainazzi, S. Molendi, W.N. Brandt

arxiv:astro-ph/9712182 v1 · 1997-12-15 · 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{GLLXYXSAIOM5US7QOTAHJJGP7L}

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	2026-07-04T14:15:35.756144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32d77c5e404399da4bf074c074a4cffae5db32f7db4f091b9694376a6ad74bbb

Aliases

arxiv: astro-ph/9712182 · arxiv_version: astro-ph/9712182v1 · doi: 10.48550/arxiv.astro-ph/9712182 · pith_short_12: GLLXYXSAIOM5 · pith_short_16: GLLXYXSAIOM5US7Q · pith_short_8: GLLXYXSA

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/GLLXYXSAIOM5US7QOTAHJJGP7L \
  | 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: 32d77c5e404399da4bf074c074a4cffae5db32f7db4f091b9694376a6ad74bbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa7d33861070838b5419ee46685731bee4a78550911af38d3ebc5ad8d3ff6e8a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-12-15T15:43:19Z",
    "title_canon_sha256": "c3ec4c6c0021107095c8a879bfcbd481c9d27fc2a8235cd2aa672f39d935c1e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9712182",
    "kind": "arxiv",
    "version": 1
  }
}