Pith Number

pith:2Z6QPZVS

pith:2004:2Z6QPZVSAICSPJBYBJBPXB5N2Q

not attested not anchored not stored refs pending

Thorium-rich halo star HD221170: further evidence against the universality of the r-process

Alexander Yushchenko, Angelina Shavrina, ChulHee Kim, Faig Musaev, Juliana Kuznietsova, Stephane Goriely, Vera Gopka, Vladimir Yushchenko, Young Woon Kang

arxiv:astro-ph/0409547 v1 · 2004-09-22 · 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{2Z6QPZVSAICSPJBYBJBPXB5N2Q}

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	2026-05-18T01:07:32.149509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d67d07e6b2020527a4380a42fb87add42f961a545142b8db37027a32c4ae0343

Aliases

arxiv: astro-ph/0409547 · arxiv_version: astro-ph/0409547v1 · doi: 10.48550/arxiv.astro-ph/0409547 · pith_short_12: 2Z6QPZVSAICS · pith_short_16: 2Z6QPZVSAICSPJBY · pith_short_8: 2Z6QPZVS

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/2Z6QPZVSAICSPJBYBJBPXB5N2Q \
  | 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: d67d07e6b2020527a4380a42fb87add42f961a545142b8db37027a32c4ae0343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ec67fbc74dc50f4feddde48376c8676649316ea0496563f5b7ce6f9a8be30b1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-22T19:39:41Z",
    "title_canon_sha256": "caae3c1c31e51c6e4d26a9654ff9a5e63a6a5a29875a6f070ec89b3fa5f98419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409547",
    "kind": "arxiv",
    "version": 1
  }
}