Pith Number

pith:JI7PKUQZ

pith:2001:JI7PKUQZ7X77KECCSEMCQAGQFL

not attested not anchored not stored refs pending

Age Estimates for Globular Clusters in NGC 1399

Duncan A. Forbes, Jean P. Brodie (Lick Observatory), Markus Kissler-Patig (ESO), Michael A. Beasley (Swinburne University)

arxiv:astro-ph/0111185 v1 · 2001-11-09 · 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{JI7PKUQZ7X77KECCSEMCQAGQFL}

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	2026-07-04T16:24:26.158335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a3ef55219fdfff5104291182800d02adfab20ff85dbad81f7c9ad0cfc40e189

Aliases

arxiv: astro-ph/0111185 · arxiv_version: astro-ph/0111185v1 · doi: 10.48550/arxiv.astro-ph/0111185 · pith_short_12: JI7PKUQZ7X77 · pith_short_16: JI7PKUQZ7X77KECC · pith_short_8: JI7PKUQZ

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/JI7PKUQZ7X77KECCSEMCQAGQFL \
  | 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: 4a3ef55219fdfff5104291182800d02adfab20ff85dbad81f7c9ad0cfc40e189

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cda17b5334f114db699a245a278420e506cb1cae70a7db1871329b1d4363e6f9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-09T02:52:45Z",
    "title_canon_sha256": "0d51ac1ff562d30c3c5ebc53ba63e12462b94a216b976ec01817102ff0e3d64d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111185",
    "kind": "arxiv",
    "version": 1
  }
}