Pith Number

pith:O4KRQ43M

pith:2009:O4KRQ43MYYC6B5EFIMAGCT7P5Y

not attested not anchored not stored refs pending

North South Asymmetry of Different Solar Activity Features During Solar Cycle 23

Bimal Pande, Kavita Pandey, Navin Chandra Joshi, Neeraj Singh Bankoti, Seema Pande

arxiv:0910.0525 v1 · 2009-10-03 · 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{O4KRQ43MYYC6B5EFIMAGCT7P5Y}

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	2026-05-18T02:34:20.291708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

771518736cc605e0f4854300614fefee1b9115c740871941c89b95f382564c88

Aliases

arxiv: 0910.0525 · arxiv_version: 0910.0525v1 · doi: 10.48550/arxiv.0910.0525 · pith_short_12: O4KRQ43MYYC6 · pith_short_16: O4KRQ43MYYC6B5EF · pith_short_8: O4KRQ43M

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/O4KRQ43MYYC6B5EFIMAGCT7P5Y \
  | 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: 771518736cc605e0f4854300614fefee1b9115c740871941c89b95f382564c88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d7351a3f9e556c18edf806319668330f9c52fff963f862f7be16bb3b004cd63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-03T08:09:18Z",
    "title_canon_sha256": "b1372eb6794d61a27eeb490081a7037290482c86eab6e54ef527364b7d9e5e48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0525",
    "kind": "arxiv",
    "version": 1
  }
}