Pith Number

pith:L7MKDSGQ

pith:2006:L7MKDSGQZ4TGKA6UXTEYFSTTG7

not attested not anchored not stored refs pending

The period-luminosity relation for type II Cepheids in globular clusters

Akika Ishihara, Daisuke Baba, Daisuke Kato, Hidehiko Nakaya, Hinako Fukushi, John W. Menzies, Michael W. Feast, Noriyuki Matsunaga, Shogo Nishiyama, Takahiro Kawadu, Takahiro Naoi, Toshihiko Tanabe, Yoshifusa Ita, Yoshikazu Nakada

arxiv:astro-ph/0606609 v1 · 2006-06-24 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7MKDSGQZ4TGKA6UXTEYFSTTG7}

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	2026-07-04T16:58:56.393286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fd8a1c8d0cf266503d4bcc982ca7337d686d6caf661ea3ea6275e4eaecfc46d

Aliases

arxiv: astro-ph/0606609 · arxiv_version: astro-ph/0606609v1 · doi: 10.48550/arxiv.astro-ph/0606609 · pith_short_12: L7MKDSGQZ4TG · pith_short_16: L7MKDSGQZ4TGKA6U · pith_short_8: L7MKDSGQ

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/L7MKDSGQZ4TGKA6UXTEYFSTTG7 \
  | 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: 5fd8a1c8d0cf266503d4bcc982ca7337d686d6caf661ea3ea6275e4eaecfc46d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9cac69ffb0da78527c6fa83f3d75ffcdc9431b8971b2e4b61a1706864e3ca50",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-24T10:57:39Z",
    "title_canon_sha256": "976f65ebf1460654621e9c6bf51e39fe64952d6765e39e80304eab1513ad36dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606609",
    "kind": "arxiv",
    "version": 1
  }
}