Pith Number

pith:R4TLKV6Z

pith:2003:R4TLKV6Z5EGPM42OP7BIKIWFSX

not attested not anchored not stored refs pending

Non-LTE Analysis for the Sodium Abundances of Metal-Poor Stars in the Galactic Disk and Halo

Gang Zhao, Hua-Wei Zhang, Masahide Takada-Hidai, Yoichi Takeda, Yu-ji Saito, Yu-Qin Chen

arxiv:astro-ph/0304337 v1 · 2003-04-18 · 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{R4TLKV6Z5EGPM42OP7BIKIWFSX}

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	2026-05-18T02:40:27.068813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f26b557d9e90cf6734e7fc28522c595df81937a4df7791e80947f9da2f7e5ab

Aliases

arxiv: astro-ph/0304337 · arxiv_version: astro-ph/0304337v1 · doi: 10.48550/arxiv.astro-ph/0304337 · pith_short_12: R4TLKV6Z5EGP · pith_short_16: R4TLKV6Z5EGPM42O · pith_short_8: R4TLKV6Z

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/R4TLKV6Z5EGPM42OP7BIKIWFSX \
  | 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: 8f26b557d9e90cf6734e7fc28522c595df81937a4df7791e80947f9da2f7e5ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70a267985028c1042e29d82906c14fd6ff18203d6596401707adb9e04d8ce645",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-18T04:58:11Z",
    "title_canon_sha256": "26423fe992101b52fc4ca6cdf8bf913cacaeb2d85aa177cc5959a7dbb0abfb6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304337",
    "kind": "arxiv",
    "version": 1
  }
}