Pith Number

pith:5V5USOK5

pith:2002:5V5USOK5WPBKRUUWVOPVEG5EX6

not attested not anchored not stored refs pending

Study of the X-Ray Background Spectrum and its Large-Scale Fluctuation with ASCA

Akihiro Kushino, Manabu Ishida, Noriko Y. Yamasaki, Takaya Ohashi, Umeyo Morita, Yoshihiro Ueda, Yoshitaka Ishisaki

arxiv:astro-ph/0204224 v3 · 2002-04-13 · 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{5V5USOK5WPBKRUUWVOPVEG5EX6}

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	2026-05-18T01:40:42.989305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed7b49395db3c2a8d296ab9f521ba4bf8d6625fd8b6d4e23cb660bd18865f399

Aliases

arxiv: astro-ph/0204224 · arxiv_version: astro-ph/0204224v3 · doi: 10.48550/arxiv.astro-ph/0204224 · pith_short_12: 5V5USOK5WPBK · pith_short_16: 5V5USOK5WPBKRUUW · pith_short_8: 5V5USOK5

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/5V5USOK5WPBKRUUWVOPVEG5EX6 \
  | 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: ed7b49395db3c2a8d296ab9f521ba4bf8d6625fd8b6d4e23cb660bd18865f399

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c9f1f0a7510fb916eff8fcbee2c18fe7a1b19404068e9d1d22bd6c553a1b714",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-04-13T11:57:58Z",
    "title_canon_sha256": "5e96ed313e4bcb50ca3a0a4ddd39bcd7e162882b27859f26f8e89b9274f1d47e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204224",
    "kind": "arxiv",
    "version": 3
  }
}