Pith Number

pith:3YYMCT4A

pith:2012:3YYMCT4AYFD7LWEXHH3SCQKB4N

not attested not anchored not stored refs pending

Flip-flops of FK Comae Berenices

Heidi Korhonen, Jaan Pelt, Jyri Lehtinen, Klaus G. Strassmeier, Lauri Jetsu, Maarit J. Mantere, Perttu Kajatkari, Thomas Granzer, Thomas Hackman

arxiv:1211.0914 v2 · 2012-11-05 · 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{3YYMCT4AYFD7LWEXHH3SCQKB4N}

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	2026-05-18T01:53:25.764372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de30c14f80c147f5d89739f7214141e36323f482e7842eba403171759edf6cf1

Aliases

arxiv: 1211.0914 · arxiv_version: 1211.0914v2 · doi: 10.48550/arxiv.1211.0914 · pith_short_12: 3YYMCT4AYFD7 · pith_short_16: 3YYMCT4AYFD7LWEX · pith_short_8: 3YYMCT4A

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/3YYMCT4AYFD7LWEXHH3SCQKB4N \
  | 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: de30c14f80c147f5d89739f7214141e36323f482e7842eba403171759edf6cf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99371557b4683a9ab861be9a2cc75073f217818fafb41f55942dc7bcdf76a648",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-05T16:30:05Z",
    "title_canon_sha256": "a4508c1aa80e90992c3f9753849e261dbe25f4046d8667d87e86240b61146c17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0914",
    "kind": "arxiv",
    "version": 2
  }
}