Pith Number

pith:SKUXTNT4

pith:2010:SKUXTNT4TCNOXTPA2RWAC5MVMN

not attested not anchored not stored refs pending

A Comparison Between the Half-Light Radii, Luminosities, and UBV Colors of Globular Clusters in M31 and the Galaxy

Sidney van den Bergh

arxiv:1007.5077 v1 · 2010-07-28 · astro-ph.CO · 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{SKUXTNT4TCNOXTPA2RWAC5MVMN}

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	2026-05-18T02:06:01.543783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92a979b67c989aebcde0d46c017595637d7c2aaee9dc35f7ca22d9f568e94c19

Aliases

arxiv: 1007.5077 · arxiv_version: 1007.5077v1 · doi: 10.48550/arxiv.1007.5077 · pith_short_12: SKUXTNT4TCNO · pith_short_16: SKUXTNT4TCNOXTPA · pith_short_8: SKUXTNT4

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/SKUXTNT4TCNOXTPA2RWAC5MVMN \
  | 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: 92a979b67c989aebcde0d46c017595637d7c2aaee9dc35f7ca22d9f568e94c19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2ac13f4a4964a97b11d023c61ba1ca1bc5370889663697efe7ed18761e9cfb9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-28T22:11:16Z",
    "title_canon_sha256": "827335477180b85bb161061c91d5227b3fe02fca71281cda6dc6160b31bf0124"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.5077",
    "kind": "arxiv",
    "version": 1
  }
}