Pith Number

pith:4LWL6NCJ

pith:2005:4LWL6NCJEWB2OK7AHWQRH5XOTU

not attested not anchored not stored refs pending

HST Observations of Heavy Elements in Metal-Poor Galactic Halo Stars

Christopher Sneden, Francesca Primas, James E. Lawler, James W. Truran, Jason Collier, Jennifer Simmerer, John J. Cowan, Scott Burles, Timothy C. Beers

arxiv:astro-ph/0502591 v1 · 2005-02-28 · 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{4LWL6NCJEWB2OK7AHWQRH5XOTU}

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	2026-07-04T16:50:54.775748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2ecbf34492583a72be03da113f6ee9d22d59b4cf3a66167042a589be2f05b2c

Aliases

arxiv: astro-ph/0502591 · arxiv_version: astro-ph/0502591v1 · doi: 10.48550/arxiv.astro-ph/0502591 · pith_short_12: 4LWL6NCJEWB2 · pith_short_16: 4LWL6NCJEWB2OK7A · pith_short_8: 4LWL6NCJ

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/4LWL6NCJEWB2OK7AHWQRH5XOTU \
  | 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: e2ecbf34492583a72be03da113f6ee9d22d59b4cf3a66167042a589be2f05b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "741072eba2f6200d70be027262d0e09b2a4fa980dc92ca4b1ee6dce455daade7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-28T20:36:28Z",
    "title_canon_sha256": "960b049932fbc579d10b3ff619cd19aa43301ffa4379353cf7107c384b6b70a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502591",
    "kind": "arxiv",
    "version": 1
  }
}