Pith Number

pith:VDKOQVSZ

pith:2000:VDKOQVSZWPCBOVI5S3XAPKKVZE

not attested not anchored not stored refs pending

Multiplicity of massive stars

Gerd Weigelt, Hans Zinnecker, Thomas Preibisch

arxiv:astro-ph/0008014 v1 · 2000-08-01 · 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{VDKOQVSZWPCBOVI5S3XAPKKVZE}

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	2026-07-04T14:10:32.608554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8d4e85659b3c417551d96ee07a955c91223612337aa3dcee24cc436fb7f9fd0

Aliases

arxiv: astro-ph/0008014 · arxiv_version: astro-ph/0008014v1 · doi: 10.48550/arxiv.astro-ph/0008014 · pith_short_12: VDKOQVSZWPCB · pith_short_16: VDKOQVSZWPCBOVI5 · pith_short_8: VDKOQVSZ

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/VDKOQVSZWPCBOVI5S3XAPKKVZE \
  | 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: a8d4e85659b3c417551d96ee07a955c91223612337aa3dcee24cc436fb7f9fd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d74ece3a81716951e7879d2259025a6d14e651a83dcf1b80308fc6a425ce88cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-01T10:53:17Z",
    "title_canon_sha256": "af4209845925771e84447c42fab72b9283f113fd2d37fa45fe81480832f8ff8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008014",
    "kind": "arxiv",
    "version": 1
  }
}