Pith Number

pith:X7GGG5WY

pith:2011:X7GGG5WYMDPLMVU5UCSSHWRVQG

not attested not anchored not stored refs pending

Evidence for solar frequency dependence on sunspot type

Charles S. Baldner, Richard S. Bogart, Sarbani Basu

arxiv:1104.3867 v1 · 2011-04-19 · 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{X7GGG5WYMDPLMVU5UCSSHWRVQG}

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	2026-05-18T02:02:22.448279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfcc6376d860deb6569da0a523da3581a40c19b7c9327642f47d14f6d177642a

Aliases

arxiv: 1104.3867 · arxiv_version: 1104.3867v1 · doi: 10.48550/arxiv.1104.3867 · pith_short_12: X7GGG5WYMDPL · pith_short_16: X7GGG5WYMDPLMVU5 · pith_short_8: X7GGG5WY

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/X7GGG5WYMDPLMVU5UCSSHWRVQG \
  | 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: bfcc6376d860deb6569da0a523da3581a40c19b7c9327642f47d14f6d177642a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc95807c88d16ee7afcc8d99d054f8d92c25f9083234e78e66c4e0d04b91e2ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-19T20:04:19Z",
    "title_canon_sha256": "d18e33bbd1372a3db6c35255daffd7c8f3d512f1a7a203ce2829f4312e9b8674"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3867",
    "kind": "arxiv",
    "version": 1
  }
}