Pith Number

pith:2TAFXBYV

pith:2006:2TAFXBYV46ZUHZPZS7EKAX3EFI

not attested not anchored not stored refs pending

Old open clusters as key tracers of Galactic chemical evolution. I. Fe abundances in NGC 2660, NGC 3960, and Berkeley 32

A.Bragaglia (INAF/Osservatiorio Astronomico di Bologna), E.Carretta (INAF/Osservatiorio Astronomico di Bologna), L.Prisinzano (INAF/Osservatorio Astronomico di Palermo), M.Tosi (INAF/Osservatiorio Astronomico di Bologna), P. Sestito (INAF/Osservatorio Astronomico di Palermo; INAF/Osservatorio Astrofisico di Arcetri; INAF/Osservatiorio Astronomico di Bologna), S. Randich (INAF/Osservatorio Astrofisico di Arcetri)

arxiv:astro-ph/0607438 v1 · 2006-07-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2TAFXBYV46ZUHZPZS7EKAX3EFI}

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	2026-05-18T04:35:03.753400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4c05b8715e7b343e5f997c8a05f642a017a8a5658fa65097de3f5e9c22b38ec

Aliases

arxiv: astro-ph/0607438 · arxiv_version: astro-ph/0607438v1 · doi: 10.48550/arxiv.astro-ph/0607438 · pith_short_12: 2TAFXBYV46ZU · pith_short_16: 2TAFXBYV46ZUHZPZ · pith_short_8: 2TAFXBYV

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/2TAFXBYV46ZUHZPZS7EKAX3EFI \
  | 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: d4c05b8715e7b343e5f997c8a05f642a017a8a5658fa65097de3f5e9c22b38ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20d21fb0139cc7a2aa9b3181fcdf25f23253d76708028ec93aab0a655a598750",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-19T09:51:33Z",
    "title_canon_sha256": "8e2b44da1b14e0d0efe976a2e8eb8ac9fc22d14eb55db68e455d47969fbc61e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607438",
    "kind": "arxiv",
    "version": 1
  }
}