Pith Number

pith:2UAGEJ7U

pith:1998:2UAGEJ7UWOMBOQ43S7SWF4Q73S

not attested not anchored not stored refs pending

BeppoSAX detection of the Fe K line in the starburst galaxy NGC253

A. Franceschini, A.J. Dean, A. Spizzichino, E. Palazzi, F. Matteucci, G. Di Cocco, G.G.C. Palumbo, L. Bassani, L. Danese, L.K. Hunt, M. Cappi, M. Persic, P. Salucci, S. Mariani, Y. Rephaeli

arxiv:astro-ph/9801130 v1 · 1998-01-14 · 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{2UAGEJ7UWOMBOQ43S7SWF4Q73S}

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	2026-07-04T16:06:04.858077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5006227f4b39817439b97e562f21fdc8057b9858c8ccb7f140f18399472f9cb

Aliases

arxiv: astro-ph/9801130 · arxiv_version: astro-ph/9801130v1 · doi: 10.48550/arxiv.astro-ph/9801130 · pith_short_12: 2UAGEJ7UWOMB · pith_short_16: 2UAGEJ7UWOMBOQ43 · pith_short_8: 2UAGEJ7U

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/2UAGEJ7UWOMBOQ43S7SWF4Q73S \
  | 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: d5006227f4b39817439b97e562f21fdc8057b9858c8ccb7f140f18399472f9cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39b55ab220a1d53c501b38b3f5236a2dc5dc4c737cd294dc215388ade4e97637",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-14T17:34:31Z",
    "title_canon_sha256": "3077d2306fe6393f44a766f49532efd812534c9e730131aac37c509d9acd3421"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801130",
    "kind": "arxiv",
    "version": 1
  }
}