Pith Number

pith:7ADUKLSP

pith:1997:7ADUKLSP5ET3BJS7VCCQJDZHCO

not attested not anchored not stored refs pending

Kilohertz QPO Peak Separation Is Not Constant in Scorpius X-1

Keith Horne, Michiel van der Klis, Rudy A.D. Wijnands, Wan Chen

arxiv:astro-ph/9703025 v1 · 1997-03-05 · 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{7ADUKLSP5ET3BJS7VCCQJDZHCO}

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	2026-05-18T01:07:38.633092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f807452e4fe927b0a65fa885048f27138b6a2be6ae0002ca28029e183bb19f2b

Aliases

arxiv: astro-ph/9703025 · arxiv_version: astro-ph/9703025v1 · doi: 10.48550/arxiv.astro-ph/9703025 · pith_short_12: 7ADUKLSP5ET3 · pith_short_16: 7ADUKLSP5ET3BJS7 · pith_short_8: 7ADUKLSP

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/7ADUKLSP5ET3BJS7VCCQJDZHCO \
  | 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: f807452e4fe927b0a65fa885048f27138b6a2be6ae0002ca28029e183bb19f2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58ac679298c77eb2b9f050982540ada64cec7a54f574bda7fbef520a5ab4496b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-03-05T15:41:12Z",
    "title_canon_sha256": "b1a14e90a0e23e1f08b4219dea0e51729093ab83fce8109a230c374c7d0530f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9703025",
    "kind": "arxiv",
    "version": 1
  }
}