Pith Number

pith:SVUYGKEB

pith:1998:SVUYGKEBGVF5RACXKJZWBCVSGA

not attested not anchored not stored refs pending

Populations of WC and WN stars in WR galaxies: new constraints on starburst parameters

Daniel Kunth (IAP, Daniel Schaerer (OMP, France), Garching), Thierry Contini (ESO, Toulouse)

arxiv:astro-ph/9812410 v1 · 1998-12-22 · 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{SVUYGKEBGVF5RACXKJZWBCVSGA}

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	2026-07-04T14:16:27.558460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9569832881354bd880575273608ab2302ee6012589c966b23d40aee09a04d404

Aliases

arxiv: astro-ph/9812410 · arxiv_version: astro-ph/9812410v1 · doi: 10.48550/arxiv.astro-ph/9812410 · pith_short_12: SVUYGKEBGVF5 · pith_short_16: SVUYGKEBGVF5RACX · pith_short_8: SVUYGKEB

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/SVUYGKEBGVF5RACXKJZWBCVSGA \
  | 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: 9569832881354bd880575273608ab2302ee6012589c966b23d40aee09a04d404

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93b749122eca96f873047f3e26b18411df7cd30a8d1540cb1ed1e3ab71e5c390",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-22T14:40:10Z",
    "title_canon_sha256": "133f3b288b955d29cc1a74fc18e7b0d45715bb4dcd465a39388ea0024f40c07c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812410",
    "kind": "arxiv",
    "version": 1
  }
}