Pith Number

pith:VD4P7DRX

pith:2019:VD4P7DRXPH4VOTQGHDWACCCTA6

not attested not anchored not stored refs pending

Compositional differences between the component stars of eclipsing close binary systems showing chemical peculiarities

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

arxiv:1902.04766 v1 · 2019-02-13 · 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{VD4P7DRXPH4VOTQGHDWACCCTA6}

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	2026-05-17T23:54:06.019930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8f8ff8e3779f9574e0638ec010853079f06edba628b14919985f5362663bf5e

Aliases

arxiv: 1902.04766 · arxiv_version: 1902.04766v1 · doi: 10.48550/arxiv.1902.04766 · pith_short_12: VD4P7DRXPH4V · pith_short_16: VD4P7DRXPH4VOTQG · pith_short_8: VD4P7DRX

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/VD4P7DRXPH4VOTQGHDWACCCTA6 \
  | 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: a8f8ff8e3779f9574e0638ec010853079f06edba628b14919985f5362663bf5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78c2497d76f29ec5cdbfde44c8abc635609a5838515efcb2a9725d5c01fb7cc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-13T06:46:07Z",
    "title_canon_sha256": "765cd795aeabd1e77e3a2163bd14d468cb474b4cf933228eb391e10375997356"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04766",
    "kind": "arxiv",
    "version": 1
  }
}