Pith Number

pith:NAPJNNZO

pith:2014:NAPJNNZO3M4Q2NJJAULJPIEQMN

not attested not anchored not stored refs pending

The Na-O anticorrelation in horizontal branch stars. IV. M22

A. Bragaglia, A. Sollima, E. Carretta, M. Salaris, R.G. Gratton, S. Cassisi, S. Lucatello, V. D'Orazi, Y. Momany

arxiv:1401.7109 v1 · 2014-01-28 · 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{NAPJNNZO3M4Q2NJJAULJPIEQMN}

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	2026-05-18T02:57:07.374163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681e96b72edb390d3529051697a09063577d2044f97dce4761c352563948e739

Aliases

arxiv: 1401.7109 · arxiv_version: 1401.7109v1 · doi: 10.48550/arxiv.1401.7109 · pith_short_12: NAPJNNZO3M4Q · pith_short_16: NAPJNNZO3M4Q2NJJ · pith_short_8: NAPJNNZO

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/NAPJNNZO3M4Q2NJJAULJPIEQMN \
  | 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: 681e96b72edb390d3529051697a09063577d2044f97dce4761c352563948e739

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3d4a93124d6c21dd2770cf6c7bf53b4c2e3e196ecd7d98aacbb2d8cccf619a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-01-28T08:21:05Z",
    "title_canon_sha256": "ed4215b429e4ba7025b83f93df63957a689102cc2b1c7c6018935054f1004698"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7109",
    "kind": "arxiv",
    "version": 1
  }
}