Pith Number

pith:KLXDRGEW

pith:2004:KLXDRGEWT5LVV6SW3IUM7PBELC

not attested not anchored not stored refs pending

High-frequency QPOs as a problem in physics: non-linear resonance

Marek A. Abramowicz, William H. Lee, Wlodek Kluzniak

arxiv:astro-ph/0402013 v1 · 2004-02-01 · 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{KLXDRGEWT5LVV6SW3IUM7PBELC}

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	2026-05-18T03:48:59.655829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52ee3898969f575afa56da28cfbc2458865a85d9ae7719125126a03c3d8e30ad

Aliases

arxiv: astro-ph/0402013 · arxiv_version: astro-ph/0402013v1 · doi: 10.48550/arxiv.astro-ph/0402013 · pith_short_12: KLXDRGEWT5LV · pith_short_16: KLXDRGEWT5LVV6SW · pith_short_8: KLXDRGEW

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/KLXDRGEWT5LVV6SW3IUM7PBELC \
  | 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: 52ee3898969f575afa56da28cfbc2458865a85d9ae7719125126a03c3d8e30ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d76844f3638c6a407588876dba0112bd6d82f260619371d1c8e2a4827310863",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-01T19:55:07Z",
    "title_canon_sha256": "c7f0d00f3b3f3d6ee8453d960871bb451aee7690b9e0d61371c1d7e5c1f91bb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402013",
    "kind": "arxiv",
    "version": 1
  }
}