Pith Number

pith:IY2GV54O

pith:2012:IY2GV54O4WUSTWRPEF6ZSNK7KH

not attested not anchored not stored refs pending

C, N, O abundances and carbon isotope ratios in evolved stars of the open clusters Collinder 261 and NGC 6253

Angela Bragaglia, Eugenio Carretta, Gra\v{z}ina Tautvai\v{s}ien\.e, Raffaele Gratton, \v{S}ar\=unas Mikolaitis

arxiv:1203.6514 v1 · 2012-03-29 · 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{IY2GV54O4WUSTWRPEF6ZSNK7KH}

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	2026-05-18T03:59:02.342741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46346af78ee5a929da2f217d99355f51d3285a3b3ae188479d99f53e1a5a2ea5

Aliases

arxiv: 1203.6514 · arxiv_version: 1203.6514v1 · doi: 10.48550/arxiv.1203.6514 · pith_short_12: IY2GV54O4WUS · pith_short_16: IY2GV54O4WUSTWRP · pith_short_8: IY2GV54O

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/IY2GV54O4WUSTWRPEF6ZSNK7KH \
  | 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: 46346af78ee5a929da2f217d99355f51d3285a3b3ae188479d99f53e1a5a2ea5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d66c9b857a154eab86ff6915645124fccbf15ef3b188e23edb0f13e2b9fc9f9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-03-29T13:26:38Z",
    "title_canon_sha256": "a68f0950b80734e873815d848be8a759c4c785cd71a82d12cca1ba6908d2ca90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6514",
    "kind": "arxiv",
    "version": 1
  }
}