Pith Number

pith:HQV6AFHY

pith:2004:HQV6AFHYKAI4V5SJLXT5QH7NZB

not attested not anchored not stored refs pending

Spectroscopic Studies of Extremely Metal-Poor Stars with Subaru/HDS:I. Observational Data

B. Sato, E. Kambe, E. Watanabe, H. Ando, H. Izumiura, J.E. Norris, K. Noguchi, K. Okita, K. Sadakane, M. Takada-Hidai, S.G. Ryan, S. Honda, S. Kawanomoto, T.C. Beers, T. Kajino, W. Aoki, Y. Takeda

arxiv:astro-ph/0402291 v1 · 2004-02-12 · 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{HQV6AFHYKAI4V5SJLXT5QH7NZB}

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	2026-07-04T16:43:01.573272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c2be014f85011caf6495de7d81fedc8754399e560aa8a9e8cb329cb7c447e8f

Aliases

arxiv: astro-ph/0402291 · arxiv_version: astro-ph/0402291v1 · doi: 10.48550/arxiv.astro-ph/0402291 · pith_short_12: HQV6AFHYKAI4 · pith_short_16: HQV6AFHYKAI4V5SJ · pith_short_8: HQV6AFHY

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/HQV6AFHYKAI4V5SJLXT5QH7NZB \
  | 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: 3c2be014f85011caf6495de7d81fedc8754399e560aa8a9e8cb329cb7c447e8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db6761150c8db53517c53a12c1d040434111e058557ae116a9c53445fb7e8de1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-12T14:59:11Z",
    "title_canon_sha256": "b63b8508c920307b55861e7a68119bf93ef28cc0d251bedef79e2b1936a69bc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402291",
    "kind": "arxiv",
    "version": 1
  }
}