Pith Number

pith:WDM7PYZ6

pith:2004:WDM7PYZ6DGB7IVPK2EWEFWTQAB

not attested not anchored not stored refs pending

The Changing Blazhko Effect of XZ Cygni

Aaron LaCluyze, A. Hedden, A. M. Rosas, Barton J. Pritzl, Brian Sharpee, Christopher Wilkinson, E.-M. Gill, Gerard Samolyk, Horace A. Smith, Karen Kinemuchi, K. W. Robinson, Marvin E. Baldwin

arxiv:astro-ph/0401314 v2 · 2004-01-15 · 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{WDM7PYZ6DGB7IVPK2EWEFWTQAB}

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	2026-05-18T01:40:37.435083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0d9f7e33e1983f455ead12c42da70006b95139d3ff1241d6d504398d4e670ab

Aliases

arxiv: astro-ph/0401314 · arxiv_version: astro-ph/0401314v2 · doi: 10.48550/arxiv.astro-ph/0401314 · pith_short_12: WDM7PYZ6DGB7 · pith_short_16: WDM7PYZ6DGB7IVPK · pith_short_8: WDM7PYZ6

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/WDM7PYZ6DGB7IVPK2EWEFWTQAB \
  | 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: b0d9f7e33e1983f455ead12c42da70006b95139d3ff1241d6d504398d4e670ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0c57b2d7883554373cab8fad932e6eea0111ccd29426e1e2080825d7b36e413",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-15T19:56:03Z",
    "title_canon_sha256": "d14c6f3446f832add366c813416931be06566fe8c9578c5336793be1cc36ef6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401314",
    "kind": "arxiv",
    "version": 2
  }
}