Pith Number

pith:ZPEXVUYI

pith:2012:ZPEXVUYIU27U2GQH5NBVI6ZU2E

not attested not anchored not stored refs pending

The horizontal branch morphology of M31 globular clusters. Extreme second parameter effect in outer halo clusters

A. Buzzoni (1), C. Cacciari (1), F. Fusi Pecci (1), Italy), L. Federici (1), M. Bellazzini (1), S. Galleti (1) ((1) INAF - Osservatorio Astronomico di Bologna, S. Perina (1)

arxiv:1209.2130 v1 · 2012-09-10 · astro-ph.GA · 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{ZPEXVUYIU27U2GQH5NBVI6ZU2E}

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	2026-05-18T01:54:37.397978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc97ad308a6bf4d1a07eb43547b34d121c07cf2660d125f09f0a661a5040237

Aliases

arxiv: 1209.2130 · arxiv_version: 1209.2130v1 · doi: 10.48550/arxiv.1209.2130 · pith_short_12: ZPEXVUYIU27U · pith_short_16: ZPEXVUYIU27U2GQH · pith_short_8: ZPEXVUYI

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/ZPEXVUYIU27U2GQH5NBVI6ZU2E \
  | 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: cbc97ad308a6bf4d1a07eb43547b34d121c07cf2660d125f09f0a661a5040237

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ad6b7123a549acca791f6fd4ade307676683e0967569a9658e9d52c02691aa7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-09-10T20:00:34Z",
    "title_canon_sha256": "15fb963483020da70cebf1f21d090b6ae02404212cac7bba1ea1db33172dd767"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2130",
    "kind": "arxiv",
    "version": 1
  }
}