Pith Number

pith:T33YRZJW

pith:2012:T33YRZJWPRI4C5LBVTDNVNBWMF

not attested not anchored not stored refs pending

A Search for OB Associations Near Southern Long-Period Cepheids. V. AQ Puppis and V620 Puppis

Daniel J. Majaess, David G. Turner, Frank Younger, Leonid Berdnikov, Mario H. Pedreros, Sidney van den Bergh

arxiv:1210.4172 v1 · 2012-10-15 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T33YRZJWPRI4C5LBVTDNVNBWMF}

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	2026-05-18T01:53:54.840528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ef788e5367c51c17561acc6dab4366168f6f53c354cee7b1e7f709b44b93cd9

Aliases

arxiv: 1210.4172 · arxiv_version: 1210.4172v1 · doi: 10.48550/arxiv.1210.4172 · pith_short_12: T33YRZJWPRI4 · pith_short_16: T33YRZJWPRI4C5LB · pith_short_8: T33YRZJW

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/T33YRZJWPRI4C5LBVTDNVNBWMF \
  | 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: 9ef788e5367c51c17561acc6dab4366168f6f53c354cee7b1e7f709b44b93cd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7009a9e779cb4aa823ed067a797340f989792d3bba155d9d50ad2c1b31027c8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-15T20:00:05Z",
    "title_canon_sha256": "51d0559593497d44cbea1597697da26c9a365d83a1945d375d44f91fcba1fb52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4172",
    "kind": "arxiv",
    "version": 1
  }
}