Pith Number

pith:DNUNZYO2

pith:2013:DNUNZYO2JAMBHCG5LRDMFUMQSR

not attested not anchored not stored refs pending

Automated classification of Hipparcos unsolved variables

A. Jan, D. Ord\'o\~nez-Blanco, I. Lecoeur-Ta\"ibi, J. Blomme, J. Cuypers, J. De Ridder, K. Nienartowicz, L. Eyer, L. Guy, L. M. Sarro, L. Rimoldini, M. Beck, M. L\'opez, M. S\"uveges, N. Mowlavi, P. Dubath, T. Lebzelter

arxiv:1301.1545 v1 · 2013-01-08 · 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{DNUNZYO2JAMBHCG5LRDMFUMQSR}

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	2026-05-18T03:36:57.214222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b68dce1da48181388dd5c46c2d1909465625485d8dee054b1abb7eb7d9adeaf

Aliases

arxiv: 1301.1545 · arxiv_version: 1301.1545v1 · doi: 10.48550/arxiv.1301.1545 · pith_short_12: DNUNZYO2JAMB · pith_short_16: DNUNZYO2JAMBHCG5 · pith_short_8: DNUNZYO2

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/DNUNZYO2JAMBHCG5LRDMFUMQSR \
  | 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: 1b68dce1da48181388dd5c46c2d1909465625485d8dee054b1abb7eb7d9adeaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6da94168271c35dc5776900930161886732963f5790d8472e84aafb75e1db5c",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-08T14:31:49Z",
    "title_canon_sha256": "cb7a02badbbf7c7ea57ab9faf9b8d9782213a4ed68db804975075701aa1199ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1545",
    "kind": "arxiv",
    "version": 1
  }
}