Pith Number

pith:IXND4G5O

pith:2009:IXND4G5O7X2GAWCZMUW5KBNZAT

not attested not anchored not stored refs pending

Can Sodium Abundances of A-Type Stars Be Reliably Determined from Na I 5890/5896 Lines?

Byeong-Cheol Lee, Dong-Il Kang, Inwoo Han, Kang-Min Kim, Yoichi Takeda

arxiv:0907.1329 v1 · 2009-07-08 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXND4G5O7X2GAWCZMUW5KBNZAT}

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	2026-05-18T02:13:04.557236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45da3e1baefdf4605859652dd505b904f4fe40a6e9eb6768f62cad1bea5d4eb9

Aliases

arxiv: 0907.1329 · arxiv_version: 0907.1329v1 · doi: 10.48550/arxiv.0907.1329 · pith_short_12: IXND4G5O7X2G · pith_short_16: IXND4G5O7X2GAWCZ · pith_short_8: IXND4G5O

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/IXND4G5O7X2GAWCZMUW5KBNZAT \
  | 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: 45da3e1baefdf4605859652dd505b904f4fe40a6e9eb6768f62cad1bea5d4eb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c395fc6eb78c479c3f2c599c0c1a4908f08afb4fd6bd3c61c014e241aa5ae46b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-08T02:04:49Z",
    "title_canon_sha256": "c352e5c0c37ac657cc4ac67ffa9d9f51d3786e6d3040933f399d133a213833ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1329",
    "kind": "arxiv",
    "version": 1
  }
}