Pith Number

pith:I4WP5TZL

pith:2004:I4WP5TZLYBNP2VOBJGREN4NGY5

not attested not anchored not stored refs pending

The formation of massive black holes through collision runaway in dense young star clusters

Holger Baumgardt (RIKEN), Junichiro Makino (Tokyo), Piet Hut (IAS), Simon Portegies Zwart (Amsterdam), Stephen McMillan (Drexel)

arxiv:astro-ph/0402622 v1 · 2004-02-26 · 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{I4WP5TZLYBNP2VOBJGREN4NGY5}

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	2026-05-18T01:07:32.753686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

472cfecf2bc05afd55c149a246f1a6c742be164f77f29c6a81937ca38f3ef096

Aliases

arxiv: astro-ph/0402622 · arxiv_version: astro-ph/0402622v1 · doi: 10.48550/arxiv.astro-ph/0402622 · pith_short_12: I4WP5TZLYBNP · pith_short_16: I4WP5TZLYBNP2VOB · pith_short_8: I4WP5TZL

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/I4WP5TZLYBNP2VOBJGREN4NGY5 \
  | 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: 472cfecf2bc05afd55c149a246f1a6c742be164f77f29c6a81937ca38f3ef096

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa35163a7c17ffdb2218146efb0176f29a9074dd0b67c36d22c3a6477c655447",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-26T10:00:04Z",
    "title_canon_sha256": "429af33f897f285567c3820c9aa8cbd992c34192135bc14c01cafc8a480860fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402622",
    "kind": "arxiv",
    "version": 1
  }
}