Pith Number

pith:XBONYZZW

pith:2003:XBONYZZWATWFKAJN7YYY5XQXXP

not attested not anchored not stored refs pending

Europium Isotope Ratios in s-Process-Element-Enhanced, Metal-Poor Stars: A New Probe of the 151Sm Branching

Grant J. Mathews, Hiroyasu Ando, John E. Norris, Masayuki Y. Fujimoto, Nobuyuki Iwamoto, Sean G. Ryan, Timothy C. Beers, Toshitaka Kajino, Wako Aoki

arxiv:astro-ph/0306544 v1 · 2003-06-26 · 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{XBONYZZWATWFKAJN7YYY5XQXXP}

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	2026-07-04T16:52:03.545206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b85cdc673604ec55012dfe318ede17bbeaac5227db594e775dd9aeeba178edcb

Aliases

arxiv: astro-ph/0306544 · arxiv_version: astro-ph/0306544v1 · doi: 10.48550/arxiv.astro-ph/0306544 · pith_short_12: XBONYZZWATWF · pith_short_16: XBONYZZWATWFKAJN · pith_short_8: XBONYZZW

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/XBONYZZWATWFKAJN7YYY5XQXXP \
  | 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: b85cdc673604ec55012dfe318ede17bbeaac5227db594e775dd9aeeba178edcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2014354276f1877c63cc873208b905ebc23e5d1710bda800fa5779a61cd439e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-26T01:24:59Z",
    "title_canon_sha256": "7fccf195d27eedc09caea1deebd9f9d2fc437e53e3b4a6d9ddc18eddc795a0a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306544",
    "kind": "arxiv",
    "version": 1
  }
}