Pith Number

pith:7HWXHOEE

pith:1999:7HWXHOEETBJEFIVZHYLT7LLFBY

not attested not anchored not stored refs pending

Very young massive stars in the Small Magellanic Cloud, revealed by HST

(2) ST-ECF, (3) Astrophysikalisches Institut Potsdam, (4) Observatoire de Marseille), European Southern Observatory, H. Zinnecker (3), L. Deharveng (4), M. Heydari-Malayeri (1), M.R. Rosa (2), Observatoire de Paris, V. Charmandaris (1) ((1) DEMIRM

arxiv:astro-ph/9901270 v1 · 1999-01-20 · 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{7HWXHOEETBJEFIVZHYLT7LLFBY}

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.

Cited by

1 paper in Pith

Binarity at LOw Metallicity (BLOeM): Pipeline-Determined Physical Properties of OB Stars

Receipt and verification

First computed	2026-07-04T14:16:30.613085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9ed73b884985242a2b93e173fad650e0e7818d8b5c27bc459f3fabea6d16b35

Aliases

arxiv: astro-ph/9901270 · arxiv_version: astro-ph/9901270v1 · doi: 10.48550/arxiv.astro-ph/9901270 · pith_short_12: 7HWXHOEETBJE · pith_short_16: 7HWXHOEETBJEFIVZ · pith_short_8: 7HWXHOEE

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/7HWXHOEETBJEFIVZHYLT7LLFBY \
  | 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: f9ed73b884985242a2b93e173fad650e0e7818d8b5c27bc459f3fabea6d16b35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb8c6250f8735c313be193e84f1ea684237628d0c200bdfcd989c654c45c60e3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-20T12:04:44Z",
    "title_canon_sha256": "e1ab40040a9e124f3fbd055ad737e1cfe3776f5eaa4183f038e080ea0718b467"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901270",
    "kind": "arxiv",
    "version": 1
  }
}