Pith Number

pith:KG6L67SX

pith:2018:KG6L67SXA5PUXXDA4L3NH2ADQM

not attested not anchored not stored refs pending

A homogeneous aa index: 2. hemispheric asymmetries and the equinoctial variation

Aude Chambodut, Ellen Clarke, Ivan D. Finch, Luke A. Barnard, Mathew J. Owens, Mike Lockwood

arxiv:1811.09815 v2 · 2018-11-24 · physics.space-ph · 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{KG6L67SXA5PUXXDA4L3NH2ADQM}

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	2026-05-17T23:58:13.370906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51bcbf7e57075f4bdc60e2f6d3e803830e275e7c1e440b75ed78b4368dfc5a4e

Aliases

arxiv: 1811.09815 · arxiv_version: 1811.09815v2 · doi: 10.48550/arxiv.1811.09815 · pith_short_12: KG6L67SXA5PU · pith_short_16: KG6L67SXA5PUXXDA · pith_short_8: KG6L67SX

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/KG6L67SXA5PUXXDA4L3NH2ADQM \
  | 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: 51bcbf7e57075f4bdc60e2f6d3e803830e275e7c1e440b75ed78b4368dfc5a4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d5e9bbdb052cd442c2009721169e48f58f771ef741ef428a1b7aca87a07a905",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2018-11-24T11:17:19Z",
    "title_canon_sha256": "66c56e413077ee23f7c8b38a71fbdd7e99059c6ad0f15f560542f65f0a885f1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09815",
    "kind": "arxiv",
    "version": 2
  }
}