Pith Number

pith:QJJDR5OT

pith:2009:QJJDR5OTDWJ5F4FLKMOIHYU3UY

not attested not anchored not stored refs pending

The Ages, Metallicities and Alpha Element Enhancements of Globular Clusters in the Elliptical NGC 5128: A Homogeneous Spectroscopic Study with Gemini/GMOS

Doug Geisler, Gretchen L.H. Harris, Kristin A. Woodley, Matias Gomez, Thomas H. Puzia, William E. Harris

arxiv:0911.0955 v1 · 2009-11-05 · 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{QJJDR5OTDWJ5F4FLKMOIHYU3UY}

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	2026-05-18T02:34:11.895765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

825238f5d31d93d2f0ab531c83e29ba604e1967a800165c9d1f3c7d6c6fa1d26

Aliases

arxiv: 0911.0955 · arxiv_version: 0911.0955v1 · doi: 10.48550/arxiv.0911.0955 · pith_short_12: QJJDR5OTDWJ5 · pith_short_16: QJJDR5OTDWJ5F4FL · pith_short_8: QJJDR5OT

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/QJJDR5OTDWJ5F4FLKMOIHYU3UY \
  | 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: 825238f5d31d93d2f0ab531c83e29ba604e1967a800165c9d1f3c7d6c6fa1d26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6adb955c0afd0e189df9c38827b40e265e9a9e4f7fb1f64bf1c4fa713140bb60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-05T00:38:07Z",
    "title_canon_sha256": "d43971a8689e85745276f152a4131e9b5b307e94f0dd49c0b790f9a84e8c60cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0955",
    "kind": "arxiv",
    "version": 1
  }
}