Pith Number

pith:X4FBV3D3

pith:2009:X4FBV3D33OKXSBY3JOKEE7TBXU

not attested not anchored not stored refs pending

Predicting the Amplitude of a Solar Cycle Using the North-South Asymmetry in the Previous Cycle: II. An Improved Prediction for Solar Cycle~24

J. Javaraiah

arxiv:0903.1336 v1 · 2009-03-07 · 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{X4FBV3D33OKXSBY3JOKEE7TBXU}

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	2026-05-18T04:14:36.190535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf0a1aec7bdb9579071b4b94427e61bd07d7fb9b47d95599c66d9fe99b2e372f

Aliases

arxiv: 0903.1336 · arxiv_version: 0903.1336v1 · doi: 10.48550/arxiv.0903.1336 · pith_short_12: X4FBV3D33OKX · pith_short_16: X4FBV3D33OKXSBY3 · pith_short_8: X4FBV3D3

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/X4FBV3D33OKXSBY3JOKEE7TBXU \
  | 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: bf0a1aec7bdb9579071b4b94427e61bd07d7fb9b47d95599c66d9fe99b2e372f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e4513eaad99003b59bb80fc22205a898cfe32fe68d787aa98e4c68fb0c09ff1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-07T11:01:53Z",
    "title_canon_sha256": "15558f93e879b926e3f8847bc1a10cff421fb51e1309f18a4f70f7fbd31d427c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1336",
    "kind": "arxiv",
    "version": 1
  }
}