Pith Number

pith:VWVGUSXB

pith:2021:VWVGUSXB4M5PWQ6EUFGMTJTOIG

not attested not anchored not stored refs pending

Determination of Sodium Abundance Ratio from Low-Resolution Stellar Spectra and Its Applications

Hye-Jin Park, Jae-Rim Koo, Timothy C. Beers, Young Kwang Kim, Young Sun Lee

arxiv:2109.00142 v3 · 2021-09-01 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VWVGUSXB4M5PWQ6EUFGMTJTOIG}

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	2026-07-05T03:53:03.593262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adaa6a4ae1e33afb43c4a14cc9a66e41bf45749f8b4fb44e30911f7f072c5598

Aliases

arxiv: 2109.00142 · arxiv_version: 2109.00142v3 · doi: 10.48550/arxiv.2109.00142 · pith_short_12: VWVGUSXB4M5P · pith_short_16: VWVGUSXB4M5PWQ6E · pith_short_8: VWVGUSXB

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/VWVGUSXB4M5PWQ6EUFGMTJTOIG \
  | 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: adaa6a4ae1e33afb43c4a14cc9a66e41bf45749f8b4fb44e30911f7f072c5598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9408d63cb4c5d17b38e505819e9e40de752875e25be122865f0ed2623d3b2bf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-01T01:30:14Z",
    "title_canon_sha256": "874bed448b1fd69bc6087db535e75cdcf98848c708b2443b3f7a4a41c3d9742c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00142",
    "kind": "arxiv",
    "version": 3
  }
}