Pith Number

pith:HT4FBWJP

pith:1997:HT4FBWJP5UYT6Y6VHPXVLM4EJE

not attested not anchored not stored refs pending

The Relative Ages of Galactic Globular Clusters

Ata Sarajedini (KPNO), Brian Chaboyer (Steward), Pierre Demarque (Yale)

arxiv:astro-ph/9710245 v1 · 1997-10-22 · 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{HT4FBWJP5UYT6Y6VHPXVLM4EJE}

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	2026-05-18T01:07:38.032196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cf850d92fed313f63d53bef55b3844919383adb19f1d0d4a78e33fd3e0964e6

Aliases

arxiv: astro-ph/9710245 · arxiv_version: astro-ph/9710245v1 · doi: 10.48550/arxiv.astro-ph/9710245 · pith_short_12: HT4FBWJP5UYT · pith_short_16: HT4FBWJP5UYT6Y6V · pith_short_8: HT4FBWJP

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/HT4FBWJP5UYT6Y6VHPXVLM4EJE \
  | 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: 3cf850d92fed313f63d53bef55b3844919383adb19f1d0d4a78e33fd3e0964e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3c4fec383ccaf125976c8dffbdeb37bf2a43666e41b3364198911f229559299",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-22T18:05:22Z",
    "title_canon_sha256": "45b69a982b483959a1d6c6315ec02353f03524fa033b9fc090a0041557997391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710245",
    "kind": "arxiv",
    "version": 1
  }
}