Pith Number

pith:4VFJ5THP

pith:2012:4VFJ5THPWZTK6PSWCKYX6EXMRF

not attested not anchored not stored refs pending

Oxygen and Sodium Abundances in M13 (NGC 6205) Giants: Linking Globular Cluster Formation Scenarios, Deep Mixing, and Post-RGB Evolution

Catherine A. Pilachowski, Christian I. Johnson

arxiv:1207.1919 v1 · 2012-07-08 · astro-ph.SR · 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{4VFJ5THPWZTK6PSWCKYX6EXMRF}

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	2026-05-18T01:56:26.861626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e54a9eccefb666af3e5612b17f12ec894dfa16c79d78275b073e74436da144f2

Aliases

arxiv: 1207.1919 · arxiv_version: 1207.1919v1 · doi: 10.48550/arxiv.1207.1919 · pith_short_12: 4VFJ5THPWZTK · pith_short_16: 4VFJ5THPWZTK6PSW · pith_short_8: 4VFJ5THP

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/4VFJ5THPWZTK6PSWCKYX6EXMRF \
  | 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: e54a9eccefb666af3e5612b17f12ec894dfa16c79d78275b073e74436da144f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cd9d6b9e840f31b3327e4f711cf5a3d7fddd5a323c042ee3247bc52de7ee164",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-08T22:34:22Z",
    "title_canon_sha256": "e7e5fbd686547b44d58f796062d7f526d876db38ca176a7cba28d5bf5ca1cd3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1919",
    "kind": "arxiv",
    "version": 1
  }
}