Pith Number

pith:SP646GVN

pith:2018:SP646GVNKNLDXCB3WWHTV2A6QL

not attested not anchored not stored refs pending

Predictability of the solar cycle over one cycle

Jie Jiang, Jin-Bin Cao, Jing-Xiu Wang, Qi-Rong Jiao

arxiv:1807.01543 v1 · 2018-07-04 · 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{SP646GVNKNLDXCB3WWHTV2A6QL}

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	2026-05-18T00:07:06.369620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93fdcf1aad53563b883bb58f3ae81e82e7ba31a20ef8f161f9d884c999005116

Aliases

arxiv: 1807.01543 · arxiv_version: 1807.01543v1 · doi: 10.48550/arxiv.1807.01543 · pith_short_12: SP646GVNKNLD · pith_short_16: SP646GVNKNLDXCB3 · pith_short_8: SP646GVN

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/SP646GVNKNLDXCB3WWHTV2A6QL \
  | 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: 93fdcf1aad53563b883bb58f3ae81e82e7ba31a20ef8f161f9d884c999005116

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a2aecd8ea239eaee0460aad5bfd14e2dad070ee65369c549216ccf54c4c54fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-04T12:35:43Z",
    "title_canon_sha256": "2013faf4c7dbbf014500324677d8129c052be3de6d972f5a30d67ca099de76a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01543",
    "kind": "arxiv",
    "version": 1
  }
}