Pith Number

pith:UWD4OMCP

pith:2019:UWD4OMCPB5AG7F343XMLMZ3DIM

not attested not anchored not stored refs pending

Waldmeier Effect in Stellar Cycles

Bidya Binay Karak, Ricky Egeland, Sallie Baliunas, Suyog Garg, Willie Soon

arxiv:1909.12148 v1 · 2019-09-26 · astro-ph.SR · astro-ph.HE · 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{UWD4OMCPB5AG7F343XMLMZ3DIM}

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.

Cited by

1 paper in Pith

Analyses of features of magnetic cycles at different amounts of dynamo supercriticality: Solar dynamo is about two times critical

Receipt and verification

First computed	2026-07-05T00:28:54.388877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a587c7304f0f406f977cddd8b667634307ebc8fee69a83c29cedfd9124206e42

Aliases

arxiv: 1909.12148 · arxiv_version: 1909.12148v1 · doi: 10.48550/arxiv.1909.12148 · pith_short_12: UWD4OMCPB5AG · pith_short_16: UWD4OMCPB5AG7F34 · pith_short_8: UWD4OMCP

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/UWD4OMCPB5AG7F343XMLMZ3DIM \
  | 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: a587c7304f0f406f977cddd8b667634307ebc8fee69a83c29cedfd9124206e42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "328ef8d7950d7dcd566ca769c05a6b6c611f6ae23da757fce2391797b2640b21",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-26T14:36:57Z",
    "title_canon_sha256": "99663ff931083970137be886193f62aba666b9c4f0330678f1880fc5ef92314a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12148",
    "kind": "arxiv",
    "version": 1
  }
}