Pith Number

pith:ZZG4ZEFI

pith:2011:ZZG4ZEFIAFBFN4N4OFRBMN2NZE

not attested not anchored not stored refs pending

Mass segregation and fractal substructure in young massive clusters: (I) the McLuster code and method calibration

A.H.W. Kuepper, H. Baumgardt, P. Kroupa, Th. Maschberger

arxiv:1107.2395 v2 · 2011-07-12 · astro-ph.GA · astro-ph.CO · astro-ph.IM · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZZG4ZEFIAFBFN4N4OFRBMN2NZE}

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	2026-05-18T02:01:19.435438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce4dcc90a8014256f1bc716216374dc90fa35f4f47a4988a50e1247d14ec2906

Aliases

arxiv: 1107.2395 · arxiv_version: 1107.2395v2 · doi: 10.48550/arxiv.1107.2395 · pith_short_12: ZZG4ZEFIAFBF · pith_short_16: ZZG4ZEFIAFBFN4N4 · pith_short_8: ZZG4ZEFI

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/ZZG4ZEFIAFBFN4N4OFRBMN2NZE \
  | 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: ce4dcc90a8014256f1bc716216374dc90fa35f4f47a4988a50e1247d14ec2906

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "344141f437b1bdcb9e89e15cd7303dc599a9aead48d5352b712e5ac093d5dc70",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-07-12T20:00:01Z",
    "title_canon_sha256": "aad7ea9aed75ef37e57ee57545bf7f2c14b459ca73e1fbee78cbbd1b23a9fe25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2395",
    "kind": "arxiv",
    "version": 2
  }
}