Pith Number

pith:CV6Z26A3

pith:2021:CV6Z26A3TZVMHFP5XFHYFROHOP

not attested not anchored not stored refs pending

PIPS, an advanced platform for period detection in time series -- I. Fourier-likelihood periodogram and application to RR Lyrae Stars

Alexei V. Filippenko, Andrew M. Hoffman, Arjun B. Savel, Benjamin E. Stahl, Connor Jennings, Ivan Altunin, James Sunseri, Nachiket Girish, Raphael Baer-Way, Yukei S. Murakami

arxiv:2107.14223 v2 · 2021-07-29 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CV6Z26A3TZVMHFP5XFHYFROHOP}

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	2026-07-05T04:28:07.192228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

157d9d781b9e6ac395fdb94f82c5c773ff8ddcc63b13736cfd3b0fd058c42ea8

Aliases

arxiv: 2107.14223 · arxiv_version: 2107.14223v2 · doi: 10.48550/arxiv.2107.14223 · pith_short_12: CV6Z26A3TZVM · pith_short_16: CV6Z26A3TZVMHFP5 · pith_short_8: CV6Z26A3

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/CV6Z26A3TZVMHFP5XFHYFROHOP \
  | 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: 157d9d781b9e6ac395fdb94f82c5c773ff8ddcc63b13736cfd3b0fd058c42ea8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d15a9a710a4a0c8cb59b9212f091c5d114fe73640337fe11a939a8b34a25bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-07-29T17:56:34Z",
    "title_canon_sha256": "59750572847feb70526685a160da9ba1ac1122e3a13b24e6354bf199c9245de1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.14223",
    "kind": "arxiv",
    "version": 2
  }
}