Pith Number

pith:GP4NEKQ3

pith:1995:GP4NEKQ352MGJODIYFEMYEPVCV

not attested not anchored not stored refs pending

RR LYRAE VARIABLE STARS: PULSATIONAL CONSTRAINTS RELEVANT TO THE OOSTERHOFF CONTROVERSY

F. Caputo, G. Bono, M. Marconi, V. Castellani

arxiv:astro-ph/9506001 v1 · 1995-06-01 · 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{GP4NEKQ352MGJODIYFEMYEPVCV}

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	2026-07-04T15:58:02.579088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33f8d22a1bee9864b868c148cc11f5157dbeda5e760060dd32081c080217bfd3

Aliases

arxiv: astro-ph/9506001 · arxiv_version: astro-ph/9506001v1 · doi: 10.48550/arxiv.astro-ph/9506001 · pith_short_12: GP4NEKQ352MG · pith_short_16: GP4NEKQ352MGJODI · pith_short_8: GP4NEKQ3

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/GP4NEKQ352MGJODIYFEMYEPVCV \
  | 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: 33f8d22a1bee9864b868c148cc11f5157dbeda5e760060dd32081c080217bfd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6785962d77a3fa02215b5a7d2c7afe52daf6a503d101441efe1aad6734fc650b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-06-01T11:06:54Z",
    "title_canon_sha256": "e6b8aeb3ea5dcc854adb2ca7944956447ce3b840875f2b67d0360897b34386d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9506001",
    "kind": "arxiv",
    "version": 1
  }
}