Pith Number

pith:J4IJET2U

pith:2011:J4IJET2UWSJQZTUVLAGLUQB2IF

not attested not anchored not stored refs pending

Chemical abundance analysis of the Open Clusters Berkeley 32, NGC 752, Hyades and Praesepe

2, (2) Departamento de Astrof\'isica, 3, (3) INAF-Osservatorio Astronomico di Bologna, 4), (4) Centro de Investigaciones de Astronom\'ia, Bologna, E. Pancino (3) ((1) Instituto de Astrof\'isica de Canarias, Italy, La Laguna, M\'erida, R. Carrera (1, Spain, Tenerife, Universidad de La Laguna, Venezuela)

arxiv:1107.2242 v2 · 2011-07-12 · 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{J4IJET2UWSJQZTUVLAGLUQB2IF}

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	2026-05-18T02:01:19.790495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f10924f54b4930cce95580cba403a415831cbbff8951205f046b0f23af4ecb1

Aliases

arxiv: 1107.2242 · arxiv_version: 1107.2242v2 · doi: 10.48550/arxiv.1107.2242 · pith_short_12: J4IJET2UWSJQ · pith_short_16: J4IJET2UWSJQZTUV · pith_short_8: J4IJET2U

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/J4IJET2UWSJQZTUVLAGLUQB2IF \
  | 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: 4f10924f54b4930cce95580cba403a415831cbbff8951205f046b0f23af4ecb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c61e96c75941b1c123549fd6acc76ed8d70e335d0e2e3e176c6f0d0a25b47976",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-07-12T10:59:48Z",
    "title_canon_sha256": "f8e6cdf1691ae1d5d2532097c5b08c33180aeaa1a53ba50fe81934ec0fca12a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2242",
    "kind": "arxiv",
    "version": 2
  }
}