Pith Number

pith:VCX774HR

pith:2009:VCX774HRNX2QBOKHK425AIDKRV

not attested not anchored not stored refs pending

Effects of Galactic fountains and delayed mixing in the chemical evolution of the Milky Way

2), (2) I.N.A.F. Osservatorio Astronomico di Trieste, (3) Institute of Astronomy, A. Pipino (4) ((1) Dipartimento di Astronomia, Astronomy, Austria (4) Department of Physics, E. Spitoni (1), F. Matteucci (1, G. Cescutti (1), Italy, S. Recchi (3, Universita' di Trieste, University of Southern California, U.S.A), Vienna University

arxiv:0906.3400 v1 · 2009-06-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCX774HRNX2QBOKHK425AIDKRV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:13:19.110182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8affff0f16df500b9475735d0206a8d672a9623d95d77ae246b7c237f4dfb50

Aliases

arxiv: 0906.3400 · arxiv_version: 0906.3400v1 · doi: 10.48550/arxiv.0906.3400 · pith_short_12: VCX774HRNX2Q · pith_short_16: VCX774HRNX2QBOKH · pith_short_8: VCX774HR

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/VCX774HRNX2QBOKHK425AIDKRV \
  | 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: a8affff0f16df500b9475735d0206a8d672a9623d95d77ae246b7c237f4dfb50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b666d1ba35c046708b13a76b6f678e00e2eaf67409c83f589c817da145440933",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-06-18T10:15:13Z",
    "title_canon_sha256": "a34f441b5ef32145223359315e558263c0b024fa74d1bc2e4cb62f8c3e9e0dff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3400",
    "kind": "arxiv",
    "version": 1
  }
}