Pith Number

pith:OSJTG2AK

pith:2025:OSJTG2AKMGOXC6SGYQSIPKNVMN

not attested not anchored not stored refs pending

A Comprehensive Look at PUDG-R21: Stellar Population and Kinematics of a Globular Cluster-Rich Ultra-Diffuse Galaxy in the Perseus Cluster

Aaron J. Romanowsky, Anna Ferr\'e-Mateu, Arsen Levitskiy, Duncan A. Forbes, Jean P. Brodie, Jonah S. Gannon, Lydia Haacke, Warrick J. Couch

arxiv:2507.05679 v1 · 2025-07-08 · 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{OSJTG2AKMGOXC6SGYQSIPKNVMN}

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	2026-07-05T11:33:34.572156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

749333680a619d717a46c42487a9b563720746892842b1d3bf1385ed22193177

Aliases

arxiv: 2507.05679 · arxiv_version: 2507.05679v1 · doi: 10.48550/arxiv.2507.05679 · pith_short_12: OSJTG2AKMGOX · pith_short_16: OSJTG2AKMGOXC6SG · pith_short_8: OSJTG2AK

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/OSJTG2AKMGOXC6SGYQSIPKNVMN \
  | 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: 749333680a619d717a46c42487a9b563720746892842b1d3bf1385ed22193177

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45581c7e7654801475e4038e8f11b2353de8df553ca4622879ceb9f998355124",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-08T05:07:16Z",
    "title_canon_sha256": "8c5c31c188bf8931477f5090f570be3e5c80517a2550116b3da7085f64936335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.05679",
    "kind": "arxiv",
    "version": 1
  }
}