Pith Number

pith:772THXLN

pith:2022:772THXLN3NJOCX3G3FL75MCO4T

not attested not anchored not stored refs pending

Semi-Supervised Classification and Clustering Analysis for Variable Stars

K. Pichara, M. Catelan, P. Protopapas, R. Pantoja

arxiv:2209.09957 v1 · 2022-09-20 · astro-ph.SR · astro-ph.GA · 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{772THXLN3NJOCX3G3FL75MCO4T}

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	2026-07-05T05:05:39.621293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fff533dd6ddb52e15f66d957feb04ee4c60f0d9ff8465a980e436c497123ae73

Aliases

arxiv: 2209.09957 · arxiv_version: 2209.09957v1 · doi: 10.48550/arxiv.2209.09957 · pith_short_12: 772THXLN3NJO · pith_short_16: 772THXLN3NJOCX3G · pith_short_8: 772THXLN

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/772THXLN3NJOCX3G3FL75MCO4T \
  | 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: fff533dd6ddb52e15f66d957feb04ee4c60f0d9ff8465a980e436c497123ae73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5275a31f5be54ab6416c72686e08b8f27a029186246246bd14bec44f73d6cfac",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-09-20T19:26:06Z",
    "title_canon_sha256": "d5fcfcb9adab7ee2beb926c3cad543a060e55f88852fb338a9c171dea8030876"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.09957",
    "kind": "arxiv",
    "version": 1
  }
}