Pith Number

pith:EZATQQUW

pith:2011:EZATQQUWIS6M2HYYYIV2DNMCJW

not attested not anchored not stored refs pending

The Na-O anticorrelation in horizontal branch stars. I. NGC 2808

A. Bragaglia, E. Carretta, R. G. Gratton, S. Lucatello, V. D'Orazi, Y. Al Momany

arxiv:1109.4013 v1 · 2011-09-19 · 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{EZATQQUWIS6M2HYYYIV2DNMCJW}

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	2026-05-18T02:00:29.389067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

264138429644bccd1f18c22ba1b5824d97e11bd7138f47f79867d9c207166734

Aliases

arxiv: 1109.4013 · arxiv_version: 1109.4013v1 · doi: 10.48550/arxiv.1109.4013 · pith_short_12: EZATQQUWIS6M · pith_short_16: EZATQQUWIS6M2HYY · pith_short_8: EZATQQUW

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/EZATQQUWIS6M2HYYYIV2DNMCJW \
  | 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: 264138429644bccd1f18c22ba1b5824d97e11bd7138f47f79867d9c207166734

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52180cd6e216bcc571997bda0d9a5396fab2b501734c78e38cc731621584ef35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-09-19T12:42:42Z",
    "title_canon_sha256": "52bfa033044fe8eac3e5c6a78ee22da07e015c58ae21180077772094d050b3b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4013",
    "kind": "arxiv",
    "version": 1
  }
}