Pith Number

pith:RDEKW56E

pith:1999:RDEKW56ERRSHIWGRILQS2JDQGL

not attested not anchored not stored refs pending

Massive Stars in the Quintuplet Cluster

Donald F. Figer, Ian S. McLean, & Mark Morris

arxiv:astro-ph/9903281 v1 · 1999-03-18 · 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{RDEKW56ERRSHIWGRILQS2JDQGL}

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	2026-05-18T04:25:39.488144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88c8ab77c48c647458d142e12d247032d7e7c5aab0aa45372cda6d49b8fbe940

Aliases

arxiv: astro-ph/9903281 · arxiv_version: astro-ph/9903281v1 · doi: 10.48550/arxiv.astro-ph/9903281 · pith_short_12: RDEKW56ERRSH · pith_short_16: RDEKW56ERRSHIWGR · pith_short_8: RDEKW56E

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/RDEKW56ERRSHIWGRILQS2JDQGL \
  | 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: 88c8ab77c48c647458d142e12d247032d7e7c5aab0aa45372cda6d49b8fbe940

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e808551bcc5c1c05385f0bdddec459391347c226e3c3e9841c28c6578a60610",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-18T11:39:55Z",
    "title_canon_sha256": "8958811b2c06ee9f1ed1cba6b66deb852c04bd29969108bf8e6db1f75eeb3d3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903281",
    "kind": "arxiv",
    "version": 1
  }
}