Pith Number

pith:7YZQKTOL

pith:2001:7YZQKTOLSNLKV5TIBI5I33ODCC

not attested not anchored not stored refs pending

Properties of the Outer Halos of Galaxies from the Study of Globular Clusters

Stephen E. Zepf (Michigan State, Yale)

arxiv:astro-ph/0109369 v1 · 2001-09-21 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7YZQKTOLSNLKV5TIBI5I33ODCC}

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	2026-05-18T00:37:32.635512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe33054dcb9356aaf6680a3a8dedc310b4e3eaf2fac70248aa04cad62ad16272

Aliases

arxiv: astro-ph/0109369 · arxiv_version: astro-ph/0109369v1 · doi: 10.48550/arxiv.astro-ph/0109369 · pith_short_12: 7YZQKTOLSNLK · pith_short_16: 7YZQKTOLSNLKV5TI · pith_short_8: 7YZQKTOL

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/7YZQKTOLSNLKV5TIBI5I33ODCC \
  | 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: fe33054dcb9356aaf6680a3a8dedc310b4e3eaf2fac70248aa04cad62ad16272

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de1dcf75b462c946e8d50c9ff973f39725513b13556a6749d448d44b035a716e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-21T03:15:45Z",
    "title_canon_sha256": "baa1349db1769b7b4cb087c4d2568a08caf52b6073661f62a9fca224cf61de52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109369",
    "kind": "arxiv",
    "version": 1
  }
}