Pith Number

pith:ZEI25MN6

pith:2003:ZEI25MN6A7MFZG5BE3EVBQDJDA

not attested not anchored not stored refs pending

Copper and Zinc in Bulge-Like Stars

L. Pompeia

arxiv:astro-ph/0305567 v2 · 2003-05-29 · 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{ZEI25MN6A7MFZG5BE3EVBQDJDA}

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	2026-05-18T01:21:50.276296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c911aeb1be07d85c9ba126c950c069182fcbce297d2f96e18f484bef42719133

Aliases

arxiv: astro-ph/0305567 · arxiv_version: astro-ph/0305567v2 · doi: 10.48550/arxiv.astro-ph/0305567 · pith_short_12: ZEI25MN6A7MF · pith_short_16: ZEI25MN6A7MFZG5B · pith_short_8: ZEI25MN6

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/ZEI25MN6A7MFZG5BE3EVBQDJDA \
  | 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: c911aeb1be07d85c9ba126c950c069182fcbce297d2f96e18f484bef42719133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e629a71a21fde98da96d1a0641deddad90888a5db3cd1049834ab3d45e37adf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-29T15:17:40Z",
    "title_canon_sha256": "f045ae35b93deb605540ecfcbe17500bd4283c3009f65c333e31f05c3e7c3bde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305567",
    "kind": "arxiv",
    "version": 2
  }
}