Pith Number

pith:PGRT2Z7L

pith:1998:PGRT2Z7LQLJEOC2JELOVCZVU6V

not attested not anchored not stored refs pending

ASCA Observation of the polar RX J1802.1+1804

C. Motch (Strasbourg), J. Greiner (AI Potsdam), M. Ishida (ISAS), R.A. Remillard (MIT)

arxiv:astro-ph/9805211 v1 · 1998-05-15 · 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{PGRT2Z7LQLJEOC2JELOVCZVU6V}

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	2026-05-18T04:21:40.201244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79a33d67eb82d2470b4922dd5166b4f5713ac320f56484ac20e489862184470f

Aliases

arxiv: astro-ph/9805211 · arxiv_version: astro-ph/9805211v1 · doi: 10.48550/arxiv.astro-ph/9805211 · pith_short_12: PGRT2Z7LQLJE · pith_short_16: PGRT2Z7LQLJEOC2J · pith_short_8: PGRT2Z7L

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/PGRT2Z7LQLJEOC2JELOVCZVU6V \
  | 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: 79a33d67eb82d2470b4922dd5166b4f5713ac320f56484ac20e489862184470f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fef650e98b61fc22ae7a82a1d768b117352f3b553e06e57193278905926037b3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-05-15T12:19:12Z",
    "title_canon_sha256": "ceea79509255fffc87cb99c0af10926224fbec3f176dd01f05e2d977d3cbaf04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9805211",
    "kind": "arxiv",
    "version": 1
  }
}