Pith Number

pith:XYQJJSIX

pith:2000:XYQJJSIX33OE5PLFSVM2LRKPLN

not attested not anchored not stored refs pending

The Amplitude of the Kilohertz Quasi-periodic Oscillations in 4U 1728-34, 4U 1608-52, and Aql X-1, as a Function of X-ray Intensity

Eric C. Ford (University of Amsterdam), Mariano Mendez, Michiel van der Klis

arxiv:astro-ph/0006245 v2 · 2000-06-19 · 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{XYQJJSIX33OE5PLFSVM2LRKPLN}

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.

Cited by

1 paper in Pith

Tracing the outburst decay of soft X-ray transients Aql X-1 and 4U 1608-52 with XSPECT

Receipt and verification

First computed	2026-07-04T16:16:48.585783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be2094c917dedc4ebd659559a5c54f5b7884f3dd69de1a86c0f131db99aba3bf

Aliases

arxiv: astro-ph/0006245 · arxiv_version: astro-ph/0006245v2 · doi: 10.48550/arxiv.astro-ph/0006245 · pith_short_12: XYQJJSIX33OE · pith_short_16: XYQJJSIX33OE5PLF · pith_short_8: XYQJJSIX

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/XYQJJSIX33OE5PLFSVM2LRKPLN \
  | 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: be2094c917dedc4ebd659559a5c54f5b7884f3dd69de1a86c0f131db99aba3bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b81105f84fac8e77f3d3e210e02fcc3e55250eb7040e6094a419cacc32d44f3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-19T08:22:27Z",
    "title_canon_sha256": "f8938c2f4fd9f1e6ae014bb47a157de18fa7eacfc8774808a075a9b0b487b261"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006245",
    "kind": "arxiv",
    "version": 2
  }
}