Pith Number

pith:W63P6QEJ

pith:2010:W63P6QEJQLNZ76UV7BVLCSCCLO

not attested not anchored not stored refs pending

Properties of hierarchically forming star clusters

2), Astronomy, Bonn (3) School of Physics, Cambridge (2) Argelander-Institut, C.J. Clarke (1), I.A. Bonnell (3), P. Kroupa (2) ( (1) Institute of Astronomy, St. Andrews), Th. Maschberger (1

arxiv:1002.4401 v1 · 2010-02-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W63P6QEJQLNZ76UV7BVLCSCCLO}

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	2026-05-18T02:08:57.661676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b6ff408982db9ffa95f86ab148425b88e499af0934ae253af0f811408ed6c7

Aliases

arxiv: 1002.4401 · arxiv_version: 1002.4401v1 · doi: 10.48550/arxiv.1002.4401 · pith_short_12: W63P6QEJQLNZ · pith_short_16: W63P6QEJQLNZ76UV · pith_short_8: W63P6QEJ

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/W63P6QEJQLNZ76UV7BVLCSCCLO \
  | 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: b7b6ff408982db9ffa95f86ab148425b88e499af0934ae253af0f811408ed6c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02deb31f4ad64c0259d9275864b881cd4f0d1ce4aae3554273d50cfb55b79f94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-02-23T20:03:47Z",
    "title_canon_sha256": "4efb75dce46fc762465bd9956a9f7e31829cd25c9d80960d01715eca7bea307a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4401",
    "kind": "arxiv",
    "version": 1
  }
}