Pith Number

pith:WNQ4HTLL

pith:2005:WNQ4HTLLG7ZEU4TF3ZDLVOWKB5

not attested not anchored not stored refs pending

A Catalog of 1022 Bright Contact Binary Stars

M. T. Geske, S. J. Gettel, T. A. McKay

arxiv:astro-ph/0509819 v1 · 2005-09-27 · 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{WNQ4HTLLG7ZEU4TF3ZDLVOWKB5}

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	2026-07-04T15:25:38.500131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b361c3cd6b37f24a7265de46babaca0f5c9a1ba3a48cf8c8e50ac06278ec2f46

Aliases

arxiv: astro-ph/0509819 · arxiv_version: astro-ph/0509819v1 · doi: 10.48550/arxiv.astro-ph/0509819 · pith_short_12: WNQ4HTLLG7ZE · pith_short_16: WNQ4HTLLG7ZEU4TF · pith_short_8: WNQ4HTLL

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/WNQ4HTLLG7ZEU4TF3ZDLVOWKB5 \
  | 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: b361c3cd6b37f24a7265de46babaca0f5c9a1ba3a48cf8c8e50ac06278ec2f46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7e1f2bd288fb67cb9a9b9aa66020a070a33f95c04b55e641ad526db87abc658",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-27T19:38:15Z",
    "title_canon_sha256": "0e0415b51e31c559903f2c2759e35a1c3d1b108f1088f6d59452f24ae694a31a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509819",
    "kind": "arxiv",
    "version": 1
  }
}