Pith Number

pith:KPQCRCP4

pith:2019:KPQCRCP4FDYIN3QRNUAQG5SZK2

not attested not anchored not stored refs pending

Automatic classification of K2 pulsating stars using machine learning techniques

A. Le Saux, L. Bugnet, R. A. Garcia, S. Mathur, S. N. Breton

arxiv:1906.09611 v1 · 2019-06-23 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPQCRCP4FDYIN3QRNUAQG5SZK2}

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	2026-05-17T23:42:37.373798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53e02889fc28f086ee116d0103765956b3ea5bc6edf46ec087c682bb5f1ce2bf

Aliases

arxiv: 1906.09611 · arxiv_version: 1906.09611v1 · doi: 10.48550/arxiv.1906.09611 · pith_short_12: KPQCRCP4FDYI · pith_short_16: KPQCRCP4FDYIN3QR · pith_short_8: KPQCRCP4

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/KPQCRCP4FDYIN3QRNUAQG5SZK2 \
  | 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: 53e02889fc28f086ee116d0103765956b3ea5bc6edf46ec087c682bb5f1ce2bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab954c8b475c795733be495685442a58aff40468e6773b0ee7331f5cf2d98240",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-23T17:11:40Z",
    "title_canon_sha256": "71831da7714e11414f2495301691b8f81d33a2712d25f071c39a1326dcf766d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09611",
    "kind": "arxiv",
    "version": 1
  }
}