Pith Number

pith:6WUZ5QDV

pith:1998:6WUZ5QDVLU645KKIZXE5QJK3VC

not attested not anchored not stored refs pending

BeppoSAX Observations of Bright Seyfert 2 Galaxies: Measuring the Intrinsic Continuum Emission

A.Comastri, A.Fabian, A.Santangelo, Bologna), D.Dal Fiume, F.Frontera, F.Haardt, G.Di Cocco, G.G.C.Palumbo, G.Ghisellini, G.Malaguti (ITeSRE-CNR), G.Matt, L. Bassani (ITeSRE-CNR, L.Piro, M.Cappi (ITeSRE-CNR), M.Dadina, M.Guainazzi, M.Trifoglio, N.Zhang, P.Blanco, P.Grandi, R.Maiolino, T.Maccacaro

arxiv:astro-ph/9809327 v1 · 1998-09-25 · 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{6WUZ5QDVLU645KKIZXE5QJK3VC}

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	2026-07-04T14:16:03.353988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5a99ec0755d3dcea948cdc9d8255ba88797656f3eb23fac0805fece92f34075

Aliases

arxiv: astro-ph/9809327 · arxiv_version: astro-ph/9809327v1 · doi: 10.48550/arxiv.astro-ph/9809327 · pith_short_12: 6WUZ5QDVLU64 · pith_short_16: 6WUZ5QDVLU645KKI · pith_short_8: 6WUZ5QDV

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/6WUZ5QDVLU645KKIZXE5QJK3VC \
  | 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: f5a99ec0755d3dcea948cdc9d8255ba88797656f3eb23fac0805fece92f34075

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afac5e7e23c9af125c48bd16c97360e08aa5a403949b383c080c212a297ec2f5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-25T10:15:20Z",
    "title_canon_sha256": "ebf51937d729c51ebf0cfebc3e7540e5b273a1f02385e8e278c94661ea9cc1a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809327",
    "kind": "arxiv",
    "version": 1
  }
}