Pith Number

pith:UD6FZZSN

pith:2025:UD6FZZSNXY7TDKIZJHWT4A6HEL

not attested not anchored not stored refs pending

Which Solar Latitude Follows the Sunspot Cycle Exactly?

K P Raju

arxiv:2509.09974 v1 · 2025-09-12 · 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{UD6FZZSNXY7TDKIZJHWT4A6HEL}

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	2026-07-05T12:09:53.046230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0fc5ce64dbe3f31a91949ed3e03c722d494081316f2d8665d4d68e0f4a1a651

Aliases

arxiv: 2509.09974 · arxiv_version: 2509.09974v1 · doi: 10.48550/arxiv.2509.09974 · pith_short_12: UD6FZZSNXY7T · pith_short_16: UD6FZZSNXY7TDKIZ · pith_short_8: UD6FZZSN

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/UD6FZZSNXY7TDKIZJHWT4A6HEL \
  | 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: a0fc5ce64dbe3f31a91949ed3e03c722d494081316f2d8665d4d68e0f4a1a651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2462dcb39c5d929a8894ebd5728f637133b25ee0935dfd3e1c22f4a2b52a733a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-09-12T05:30:30Z",
    "title_canon_sha256": "1dfe714b11601ac1ca5e3f5a395a74b90a4a7d4a01e6f75afb00f8027b2a4438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.09974",
    "kind": "arxiv",
    "version": 1
  }
}