Pith Number

pith:OZ6ON27Z

pith:2019:OZ6ON27ZZBMAQ5DSR3CRKXAF4J

not attested not anchored not stored refs pending

Sounding stellar cycles with Kepler - III. Comparative analysis of chromospheric, photometric and asteroseismic variability

A.R.G. Santos, B.T. Montet, C. Karoff, M.B. Nielsen, N.E. Jannsen, T.S. Metcalfe, W.J. Chaplin

arxiv:1902.02172 v2 · 2019-02-06 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZ6ON27ZZBMAQ5DSR3CRKXAF4J}

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	2026-05-17T23:50:21.455303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

767ce6ebf9c8580874728ec5155c05e267ecf4e8d8dfa89cb87e95b4860aec08

Aliases

arxiv: 1902.02172 · arxiv_version: 1902.02172v2 · doi: 10.48550/arxiv.1902.02172 · pith_short_12: OZ6ON27ZZBMA · pith_short_16: OZ6ON27ZZBMAQ5DS · pith_short_8: OZ6ON27Z

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/OZ6ON27ZZBMAQ5DSR3CRKXAF4J \
  | 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: 767ce6ebf9c8580874728ec5155c05e267ecf4e8d8dfa89cb87e95b4860aec08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb8f791472b6b123f7242a1b553c2c5ba0346bed8e8bf317e11f3964fb38e6b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-06T13:34:36Z",
    "title_canon_sha256": "75d4d7d6d0efbe484b502bbd635dcaad82821cc884b1655565043ee2c04e8068"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02172",
    "kind": "arxiv",
    "version": 2
  }
}