Pith Number

pith:VPDAPJOO

pith:2014:VPDAPJOOUAVZ53JDAP4S5L3F7O

not attested not anchored not stored refs pending

North-south differences of solar cycles

A. Ludm\'any, J. Murak\"ozy

arxiv:1401.2105 v1 · 2014-01-09 · 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{VPDAPJOOUAVZ53JDAP4S5L3F7O}

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	2026-05-18T03:02:47.497110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abc607a5cea02b9eed2303f92eaf65fbacb5ca5cb099363ad94ccdfbbead8e64

Aliases

arxiv: 1401.2105 · arxiv_version: 1401.2105v1 · doi: 10.48550/arxiv.1401.2105 · pith_short_12: VPDAPJOOUAVZ · pith_short_16: VPDAPJOOUAVZ53JD · pith_short_8: VPDAPJOO

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/VPDAPJOOUAVZ53JDAP4S5L3F7O \
  | 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: abc607a5cea02b9eed2303f92eaf65fbacb5ca5cb099363ad94ccdfbbead8e64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7a3d17ff17073235ad541f12ef380111d400579649b06b4b774a0116c1e1c53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-01-09T18:06:13Z",
    "title_canon_sha256": "4ddc8ac76ba80d695998d4c4ae25e05c3b66c2ff00d9d7adb92ae224e150bd1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2105",
    "kind": "arxiv",
    "version": 1
  }
}