Pith Number

pith:COH2ORDO

pith:2012:COH2ORDORGZUTCX365IEK34YJL

not attested not anchored not stored refs pending

Determination of Cycle Length of Quasi-Periodic Signals. Application to Semiregular Variables

Ivan L. Andronov, Lidia L. Chinarova

arxiv:1212.6708 v1 · 2012-12-30 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COH2ORDORGZUTCX365IEK34YJL}

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	2026-05-18T03:37:31.149434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

138fa7446e89b3498afbf750456f984ad035eada5ace383b58f9254412c93d51

Aliases

arxiv: 1212.6708 · arxiv_version: 1212.6708v1 · doi: 10.48550/arxiv.1212.6708 · pith_short_12: COH2ORDORGZU · pith_short_16: COH2ORDORGZUTCX3 · pith_short_8: COH2ORDO

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/COH2ORDORGZUTCX365IEK34YJL \
  | 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: 138fa7446e89b3498afbf750456f984ad035eada5ace383b58f9254412c93d51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96075c6ff8ab48a2e1796a5811e1b8d312976987e12f0d756a20a1447db0267c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-12-30T12:48:59Z",
    "title_canon_sha256": "b096c11b0f2765a9b0847018bfa5ca818f671f2019c47d93f8b7a3f192f008da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6708",
    "kind": "arxiv",
    "version": 1
  }
}