Pith Number

pith:C2NHDI7T

pith:2009:C2NHDI7TCCCQE2I5AU4HPIQSMZ

not attested not anchored not stored refs pending

Evidence for a Non-Uniform Initial Mass Function in the Local Universe

B. Koribalski, C.G. Hoopes, D.A. Thilker, D.J. Hanish, E.V. Ryan-Weber, Gerhardt R. Meurer, H.C. Ferguson, J. Bland-Hawthorn, J.H. Kim, J. Werk, L. Staveley-Smith, M.A. Dopita, M.A. Zwaan, M.E. Putman, M.J. Drinkwater, M. Meyer, M. Seibert, M.T. Doyle, O.I. Wong, P.M. Knezek, R.C. Smith, R.L. Webster, T.M. Heckman, V.A. Kilborn

arxiv:0902.0384 v2 · 2009-02-03 · astro-ph.GA · astro-ph.CO · 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{C2NHDI7TCCCQE2I5AU4HPIQSMZ}

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	2026-05-18T04:29:16.891351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

169a71a3f3108502691d053877a21266549e584d34b796b033e7bb289f25c4d5

Aliases

arxiv: 0902.0384 · arxiv_version: 0902.0384v2 · doi: 10.48550/arxiv.0902.0384 · pith_short_12: C2NHDI7TCCCQ · pith_short_16: C2NHDI7TCCCQE2I5 · pith_short_8: C2NHDI7T

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/C2NHDI7TCCCQE2I5AU4HPIQSMZ \
  | 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: 169a71a3f3108502691d053877a21266549e584d34b796b033e7bb289f25c4d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4c12e644f5947328cc023499af1492fcca1414009b481f4aef92c38a677aad6",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-02-03T14:16:32Z",
    "title_canon_sha256": "df9c12ca56a09f99ecf281432a9583d9048f135a884c2409dd6a7e7f80c0dbbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0384",
    "kind": "arxiv",
    "version": 2
  }
}