Pith Number

pith:VJ2PNOH6

pith:1996:VJ2PNOH6GHULRZLGVVO32S7FIL

not attested not anchored not stored refs pending

Cepheid Radii and the Cors Method Revisited

F. Barone, G. Russo, L. Milano, V. Ripepi

arxiv:astro-ph/9601019 v1 · 1996-01-05 · 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{VJ2PNOH6GHULRZLGVVO32S7FIL}

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	2026-07-04T14:14:40.574509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa74f6b8fe31e8b8e566ad5dbd4be542f4781936fb177b1d78ee0e4f791b8df3

Aliases

arxiv: astro-ph/9601019 · arxiv_version: astro-ph/9601019v1 · doi: 10.48550/arxiv.astro-ph/9601019 · pith_short_12: VJ2PNOH6GHUL · pith_short_16: VJ2PNOH6GHULRZLG · pith_short_8: VJ2PNOH6

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/VJ2PNOH6GHULRZLGVVO32S7FIL \
  | 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: aa74f6b8fe31e8b8e566ad5dbd4be542f4781936fb177b1d78ee0e4f791b8df3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "112c0dc57b0979f2897f1e009497d2e2e26cfc97d5f233d31a1510ecb62dc9ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-01-05T15:01:00Z",
    "title_canon_sha256": "a448d8edecbf268f6573ff59ef137a5976393eaeef4c74615b3d521230e0421b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9601019",
    "kind": "arxiv",
    "version": 1
  }
}