Pith Number

pith:LBEBV3M3

pith:2018:LBEBV3M3POXOZM76LVEYL3NPKT

not attested not anchored not stored refs pending

NGC 1893: a young open cluster rich in multi-type variable stars

Fabio Barblan, Hui-Fang Xue, Jian-Ning Fu, Jia-Shu Niu, Nami Mowlavi, Sophie Saesen, Yong Yang

arxiv:1810.04923 v1 · 2018-10-11 · 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{LBEBV3M3POXOZM76LVEYL3NPKT}

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	2026-05-17T23:56:58.200283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58481aed9b7baeecb3fe5d4985edaf54f52f02a0eb408a5d25d24cf98e9c2515

Aliases

arxiv: 1810.04923 · arxiv_version: 1810.04923v1 · doi: 10.48550/arxiv.1810.04923 · pith_short_12: LBEBV3M3POXO · pith_short_16: LBEBV3M3POXOZM76 · pith_short_8: LBEBV3M3

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/LBEBV3M3POXOZM76LVEYL3NPKT \
  | 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: 58481aed9b7baeecb3fe5d4985edaf54f52f02a0eb408a5d25d24cf98e9c2515

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d6e064e33d2fd9a613589cc8b74ce42c4cd96813841b32aea32ba4638390a7d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-10-11T09:27:54Z",
    "title_canon_sha256": "47324987b9e864eeb7987ac2830de94b03e58e22cd8e64d39e1e5110cb6df42c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04923",
    "kind": "arxiv",
    "version": 1
  }
}