Pith Number

pith:3ZWAGSWE

pith:1998:3ZWAGSWE542K7GPAMGQKIUEGAT

not attested not anchored not stored refs pending

ASCA Discovery of an X-ray Pulsar in the Error Box of SGR1900+14

A. Yoshida, C. Kouveliotou, C. Luginbuhl, F. Vrba, I. Smith, J. van Paradijs, K. Hurley, M. Ando, P. Li, S. Kulkarni, T. Murakami, T. Strohmayer

arxiv:astro-ph/9811388 v1 · 1998-11-24 · 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{3ZWAGSWE542K7GPAMGQKIUEGAT}

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	2026-07-04T16:07:13.142568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de6c034ac4ef34af99e061a0a4508604c28dfa67fd6bb730e8427db1e5f02e68

Aliases

arxiv: astro-ph/9811388 · arxiv_version: astro-ph/9811388v1 · doi: 10.48550/arxiv.astro-ph/9811388 · pith_short_12: 3ZWAGSWE542K · pith_short_16: 3ZWAGSWE542K7GPA · pith_short_8: 3ZWAGSWE

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/3ZWAGSWE542K7GPAMGQKIUEGAT \
  | 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: de6c034ac4ef34af99e061a0a4508604c28dfa67fd6bb730e8427db1e5f02e68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53d5070fc54d46943f69a263239a5fa09edd08f9ccce245cf4cd29b2bb5c8ccd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-24T18:09:59Z",
    "title_canon_sha256": "84ed1c2ff1a166cf22ef3517d1624b69d8acd9737a2adf7f6d5418912a18068a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811388",
    "kind": "arxiv",
    "version": 1
  }
}