Pith Number

pith:ABJ7BKM4

pith:1997:ABJ7BKM4VO65H6DCQH7SBPSSKD

not attested not anchored not stored refs pending

GX 17+2: X-ray spectral and timing behaviour of a bursting Z source

E. Kuulkers, J. van Paradijs, M. van der Klis, T. Oosterbroek, W. H. G. Lewin

arxiv:astro-ph/9704055 v1 · 1997-04-07 · 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{ABJ7BKM4VO65H6DCQH7SBPSSKD}

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	2026-05-18T01:40:17.836627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0053f0a99cabbdd3f86281ff20be5250f21f7ffad3e921ee7b541cbed185d49a

Aliases

arxiv: astro-ph/9704055 · arxiv_version: astro-ph/9704055v1 · doi: 10.48550/arxiv.astro-ph/9704055 · pith_short_12: ABJ7BKM4VO65 · pith_short_16: ABJ7BKM4VO65H6DC · pith_short_8: ABJ7BKM4

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/ABJ7BKM4VO65H6DCQH7SBPSSKD \
  | 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: 0053f0a99cabbdd3f86281ff20be5250f21f7ffad3e921ee7b541cbed185d49a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7030ce17147879bc3f15ded2237049f654a07535e1a6ed869586c7b930c1b9b3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-07T11:17:55Z",
    "title_canon_sha256": "6eb5fcf91d72c55d902ddc032124e71d63d196979579db1e0ec0774e2ee9ea8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704055",
    "kind": "arxiv",
    "version": 1
  }
}