Pith Number

pith:ZKYB3MBG

pith:2002:ZKYB3MBGCIYM5FYKMLTWSCRJ5K

not attested not anchored not stored refs pending

On the pulsation parallax of the variable star RR Lyr

F. Caputo (INAF - Astron. Obs. of Roma), G. Bono, J. Storm (Astrophysikalisches Institut Potsdam), M. Marconi (INAF - Astron. Obs. of Capodimonte), V. Castellani (INFN - Sezione di Ferrara)

arxiv:astro-ph/0204243 v1 · 2002-04-15 · 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{ZKYB3MBGCIYM5FYKMLTWSCRJ5K}

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	2026-07-04T16:29:51.704191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cab01db0261230ce970a62e7690a29ea9b6321f36919b4a1f83e3240c4dcb5e1

Aliases

arxiv: astro-ph/0204243 · arxiv_version: astro-ph/0204243v1 · doi: 10.48550/arxiv.astro-ph/0204243 · pith_short_12: ZKYB3MBGCIYM · pith_short_16: ZKYB3MBGCIYM5FYK · pith_short_8: ZKYB3MBG

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/ZKYB3MBGCIYM5FYKMLTWSCRJ5K \
  | 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: cab01db0261230ce970a62e7690a29ea9b6321f36919b4a1f83e3240c4dcb5e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b85c0ea870daacc3988b1f019e59ab5304b596b396a35462bb08050aead9c91a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-04-15T13:13:01Z",
    "title_canon_sha256": "06cc8cffff96cbafbb99b436b58d24f867a6fcb080b53d4e72233a4200759a8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204243",
    "kind": "arxiv",
    "version": 1
  }
}