Pith Number

pith:VMU5ER4Y

pith:2012:VMU5ER4YHTAHXDSGKXHBUNAHLI

not attested not anchored not stored refs pending

Evidence for top-heavy stellar initial mass functions with increasing density and decreasing metallicity

J\"org Dabringhausen, Marcel S. Pawlowski, Michael Marks, Pavel Kroupa

arxiv:1202.4755 v1 · 2012-02-21 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMU5ER4YHTAHXDSGKXHBUNAHLI}

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	2026-05-18T01:58:22.703575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab29d247983cc07b8e4655ce1a34075a045bd381021c36b205a39f1a2ea34432

Aliases

arxiv: 1202.4755 · arxiv_version: 1202.4755v1 · doi: 10.48550/arxiv.1202.4755 · pith_short_12: VMU5ER4YHTAH · pith_short_16: VMU5ER4YHTAHXDSG · pith_short_8: VMU5ER4Y

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/VMU5ER4YHTAHXDSGKXHBUNAHLI \
  | 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: ab29d247983cc07b8e4655ce1a34075a045bd381021c36b205a39f1a2ea34432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18cf8d678cbe1ea3334ab5786263cafe009825c48724ecc4f64a4384ec0bff32",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-02-21T21:00:00Z",
    "title_canon_sha256": "6e81b4bec1131901de975a354eb398e13832e7835e5ecb226a743f8bd8a441ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4755",
    "kind": "arxiv",
    "version": 1
  }
}