Pith Number

pith:NLIJAQT2

pith:1995:NLIJAQT2XPAWLG7PHWDFOAPXQB

not attested not anchored not stored refs pending

The Topology of RR Lyrae Instability Strip and the Oosterhoff Dichotomy

F. Caputo, G. Bono, M. Marconi

arxiv:astro-ph/9507037 v1 · 1995-07-11 · 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{NLIJAQT2XPAWLG7PHWDFOAPXQB}

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	2026-07-04T15:58:04.213376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ad090427abbc1659bef3d865701f78070ffef8ded39ffa0744b2b47d8df0611

Aliases

arxiv: astro-ph/9507037 · arxiv_version: astro-ph/9507037v1 · doi: 10.48550/arxiv.astro-ph/9507037 · pith_short_12: NLIJAQT2XPAW · pith_short_16: NLIJAQT2XPAWLG7P · pith_short_8: NLIJAQT2

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/NLIJAQT2XPAWLG7PHWDFOAPXQB \
  | 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: 6ad090427abbc1659bef3d865701f78070ffef8ded39ffa0744b2b47d8df0611

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b80dae6d58d17ed2d5ae220db904be846b5d17466714008f18406f544f6134ce",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-07-11T17:52:02Z",
    "title_canon_sha256": "032d1a6ab2fc629d6dea17068eb6fd7a6c3a8d0327a59d5f5b5125e50b79bdbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9507037",
    "kind": "arxiv",
    "version": 1
  }
}