Pith Number

pith:WFQXCUDA

pith:2003:WFQXCUDA55Y3DWN2ZFLZUXIJII

not attested not anchored not stored refs pending

Contact binary stars of the W UMa type as distance tracers

Slavek M. Rucinski

arxiv:astro-ph/0311085 v1 · 2003-11-04 · 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{WFQXCUDA55Y3DWN2ZFLZUXIJII}

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	2026-07-04T16:37:40.482454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b161715060ef71b1d9bac9579a5d09420144a68ddecd213c58a47fd6d46918b2

Aliases

arxiv: astro-ph/0311085 · arxiv_version: astro-ph/0311085v1 · doi: 10.48550/arxiv.astro-ph/0311085 · pith_short_12: WFQXCUDA55Y3 · pith_short_16: WFQXCUDA55Y3DWN2 · pith_short_8: WFQXCUDA

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/WFQXCUDA55Y3DWN2ZFLZUXIJII \
  | 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: b161715060ef71b1d9bac9579a5d09420144a68ddecd213c58a47fd6d46918b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae13664e6f109ca68cf8f78454b31ddd45ba28f44bdfd9024e94bcc00daea4d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-04T14:10:36Z",
    "title_canon_sha256": "b371e5607d04aa6e362422b300263d225f51925cff38d872e05102f0a5d9e5f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311085",
    "kind": "arxiv",
    "version": 1
  }
}