Pith Number

pith:5CA4R4EK

pith:1998:5CA4R4EKVYJIIASFTLWFR6S2HD

not attested not anchored not stored refs pending

Discovery of the compact X-ray source inside the Cygnus Loop

E. Miyata, H. Tsunemi, K. Hashimotodani (Osaka Univ.) T.G. Tsuru, K. Koyama (Kyoto Univ.) K. Ayani (Bisei Astronomical Obs.) K. Ohta (Kyoto Univ.) M. Yoshida (Okayama Astrophysical Observatory), K. Torii

arxiv:astro-ph/9807270 v1 · 1998-07-27 · 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{5CA4R4EKVYJIIASFTLWFR6S2HD}

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	2026-05-18T01:40:13.842258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e881c8f08aae128402459aec58fa5a38ea34d98a70056f48e851916feffe2bdd

Aliases

arxiv: astro-ph/9807270 · arxiv_version: astro-ph/9807270v1 · doi: 10.48550/arxiv.astro-ph/9807270 · pith_short_12: 5CA4R4EKVYJI · pith_short_16: 5CA4R4EKVYJIIASF · pith_short_8: 5CA4R4EK

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/5CA4R4EKVYJIIASFTLWFR6S2HD \
  | 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: e881c8f08aae128402459aec58fa5a38ea34d98a70056f48e851916feffe2bdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53b1c06b8f6c87ed52902869ed522703e8f6260d972a645dd5f81cbc35a609b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-07-27T14:25:28Z",
    "title_canon_sha256": "7cb33a289b91bb6e5db9e278f7e5b936eb28cf3a8d0cb54d71cb549d7c01ada5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9807270",
    "kind": "arxiv",
    "version": 1
  }
}