Pith Number

pith:VTQNQZCK

pith:2013:VTQNQZCKACKQMIJWAY7NIGIYHW

not attested not anchored not stored refs pending

Age -- Metallicity relation in the MCs clusters (Based on observations made with the Danish 1.54 m and ESO 3.6m Telescopes at La Silla Observatory, Chile)

A. Dapergolas, A. Karampelas, B. Dirsch, B. Nordstr\"om, E. Kontizas, E. Livanou, J. Andersen, M. Kontizas

arxiv:1303.2538 v1 · 2013-03-11 · astro-ph.CO · 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{VTQNQZCKACKQMIJWAY7NIGIYHW}

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	2026-05-18T03:31:18.713240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ace0d8644a0095062136063ed419183daf30d357a3fc55fade3b90299e7bde8a

Aliases

arxiv: 1303.2538 · arxiv_version: 1303.2538v1 · doi: 10.48550/arxiv.1303.2538 · pith_short_12: VTQNQZCKACKQ · pith_short_16: VTQNQZCKACKQMIJW · pith_short_8: VTQNQZCK

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/VTQNQZCKACKQMIJWAY7NIGIYHW \
  | 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: ace0d8644a0095062136063ed419183daf30d357a3fc55fade3b90299e7bde8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "091fb403c5761c72a41da39bce58ccf9d3bb26c116373e0a786968695fb2f911",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-11T14:38:42Z",
    "title_canon_sha256": "844be1995fb956532ba3f637e4a77f80f2dfb790b8b9a0bd930549cf5f8035b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2538",
    "kind": "arxiv",
    "version": 1
  }
}