Pith Number

pith:CIELVM72

pith:2019:CIELVM72BO7KAEVTYAJAF6YBNB

not attested not anchored not stored refs pending

On Polar Magnetic Field Reversal in Solar Cycles 21, 22, 23, and 24

Mykola I. Pishkalo

arxiv:1909.00055 v1 · 2019-08-30 · astro-ph.SR · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIELVM72BO7KAEVTYAJAF6YBNB}

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	2026-07-05T00:12:06.009918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1208bab3fa0bbea012b3c01202fb01686699bb8ad610e98533ea5520fa724bda

Aliases

arxiv: 1909.00055 · arxiv_version: 1909.00055v1 · doi: 10.48550/arxiv.1909.00055 · pith_short_12: CIELVM72BO7K · pith_short_16: CIELVM72BO7KAEVT · pith_short_8: CIELVM72

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/CIELVM72BO7KAEVTYAJAF6YBNB \
  | 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: 1208bab3fa0bbea012b3c01202fb01686699bb8ad610e98533ea5520fa724bda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf0546e3eefcfb953ad568163ecea5d33aed394d20e9a6d79eacfde2c08eaaeb",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-30T20:18:11Z",
    "title_canon_sha256": "1988e1f03bcb59bf980ca77d1151e8ad0f5747dbc904e626d6120a1daf058c4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00055",
    "kind": "arxiv",
    "version": 1
  }
}