Pith Number

pith:4FJQ63Y5

pith:2003:4FJQ63Y5URONYXNKBFZECO6WVY

not attested not anchored not stored refs pending

The impact of alpha/Fe enhanced stellar evolutionary tracks on the ages of elliptical galaxies

Claudia Maraston (MPE, Daniel Thomas, Garching)

arxiv:astro-ph/0302063 v1 · 2003-02-04 · 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{4FJQ63Y5URONYXNKBFZECO6WVY}

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	2026-07-04T16:36:26.246127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1530f6f1da45cdc5daa0972413bd6ae189cbd4605d7ffc05d53700becd323dd

Aliases

arxiv: astro-ph/0302063 · arxiv_version: astro-ph/0302063v1 · doi: 10.48550/arxiv.astro-ph/0302063 · pith_short_12: 4FJQ63Y5URON · pith_short_16: 4FJQ63Y5URONYXNK · pith_short_8: 4FJQ63Y5

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/4FJQ63Y5URONYXNKBFZECO6WVY \
  | 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: e1530f6f1da45cdc5daa0972413bd6ae189cbd4605d7ffc05d53700becd323dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "006c700ae87ed21f395e5c0ffb6b159231271766bca4f5b0456bce51ac24f762",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-04T21:01:14Z",
    "title_canon_sha256": "efdeb49c86935d2066248adbcb8e3803385f94c9dd2053420050fbf72d9aed8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302063",
    "kind": "arxiv",
    "version": 1
  }
}