Pith Number

pith:W5NG4ZTO

pith:2012:W5NG4ZTO5OUC7KU6X2IK62Q2ZJ

not attested not anchored not stored refs pending

Baade-Wesselink distances to Galactic and Magellanic Cloud Cepheids and the effect of metallicity

M. A. T. Groenewegen

arxiv:1212.5478 v1 · 2012-12-21 · 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{W5NG4ZTO5OUC7KU6X2IK62Q2ZJ}

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	2026-05-18T01:52:29.243380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b75a6e666eeba82faa9ebe90af6a1aca4d1d591279601f6676515d2da8d2436c

Aliases

arxiv: 1212.5478 · arxiv_version: 1212.5478v1 · doi: 10.48550/arxiv.1212.5478 · pith_short_12: W5NG4ZTO5OUC · pith_short_16: W5NG4ZTO5OUC7KU6 · pith_short_8: W5NG4ZTO

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/W5NG4ZTO5OUC7KU6X2IK62Q2ZJ \
  | 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: b75a6e666eeba82faa9ebe90af6a1aca4d1d591279601f6676515d2da8d2436c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3a3d3ca1bef03ac916480774195bbee36119b306851a1f3abd3426bdef9534a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-12-21T15:12:09Z",
    "title_canon_sha256": "3830f4ebe2860679cc2ef333ae8fed592ec5960fed420764e639a33be4c98f0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5478",
    "kind": "arxiv",
    "version": 1
  }
}