Pith Number

pith:DM2PDUEX

pith:2000:DM2PDUEXLJB72G7ORLOSRMBASZ

not attested not anchored not stored refs pending

The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turn-offs. II. Results from 12 Galactic Clusters and OB Associations

E. Waterhouse, K. DeGioia-Eastwood, P. Massey

arxiv:astro-ph/0010654 v1 · 2000-10-31 · 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{DM2PDUEXLJB72G7ORLOSRMBASZ}

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	2026-07-04T16:17:31.266670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b34f1d0975a43fd1bee8add28b02096464327cb2722fda254cb7872ba3a2fc6

Aliases

arxiv: astro-ph/0010654 · arxiv_version: astro-ph/0010654v1 · doi: 10.48550/arxiv.astro-ph/0010654 · pith_short_12: DM2PDUEXLJB7 · pith_short_16: DM2PDUEXLJB72G7O · pith_short_8: DM2PDUEX

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/DM2PDUEXLJB72G7ORLOSRMBASZ \
  | 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: 1b34f1d0975a43fd1bee8add28b02096464327cb2722fda254cb7872ba3a2fc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d91c6ff3c87f14589f2ffbadc5f68bf39dedf3bea1ea955e0276bdc006caf9f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-31T19:43:30Z",
    "title_canon_sha256": "5cf2eefbc7a7fb0aca8c6d2e2a54504929cbffe415358891b8e300bf02f0d5a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010654",
    "kind": "arxiv",
    "version": 1
  }
}