Pith Number

pith:ZSNU3IUO

pith:2001:ZSNU3IUOKAUIAZCCFNLLKZQKMC

not attested not anchored not stored refs pending

On the Abundance of Potassium in Metal-Poor Stars

Gang Zhao, Hong-Mei Qiu, Masahide Takada-Hidai, Yoichi Takeda, Yu-Qin Chen

arxiv:astro-ph/0110165 v2 · 2001-10-08 · 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{ZSNU3IUOKAUIAZCCFNLLKZQKMC}

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	2026-05-18T01:40:43.978699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc9b4da28e50288064422b56b5660a60bc4751bcd31bc44d6270f63494a996ef

Aliases

arxiv: astro-ph/0110165 · arxiv_version: astro-ph/0110165v2 · doi: 10.48550/arxiv.astro-ph/0110165 · pith_short_12: ZSNU3IUOKAUI · pith_short_16: ZSNU3IUOKAUIAZCC · pith_short_8: ZSNU3IUO

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/ZSNU3IUOKAUIAZCCFNLLKZQKMC \
  | 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: cc9b4da28e50288064422b56b5660a60bc4751bcd31bc44d6270f63494a996ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf3a2315aaf8989899cd702c18836827e64ff36bd23d0b90dc3abd4e5d0cfbbb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-08T08:39:31Z",
    "title_canon_sha256": "a1f5654a594d730f8f7729456e42f0f7e9afb81abadc91785e304a6b73efa4a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110165",
    "kind": "arxiv",
    "version": 2
  }
}