Pith Number

pith:MMV772SB

pith:2011:MMV772SBUR3XR53S4KO3ZJJF42

not attested not anchored not stored refs pending

Time Distributions of Large and Small Sunspot Groups Over Four Solar Cycles

A. Kilcik, A. Ozguc, J. P. Rozelot, P.R. Goode, V. Abramenko, V. B. Yurchyshyn, W. Cao

arxiv:1111.3999 v1 · 2011-11-17 · 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{MMV772SBUR3XR53S4KO3ZJJF42}

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	2026-05-18T04:08:12.135572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

632bffea41a47778f772e29dbca525e6a5d5e8d95955fef19010c5fd111d4d3a

Aliases

arxiv: 1111.3999 · arxiv_version: 1111.3999v1 · doi: 10.48550/arxiv.1111.3999 · pith_short_12: MMV772SBUR3X · pith_short_16: MMV772SBUR3XR53S · pith_short_8: MMV772SB

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/MMV772SBUR3XR53S4KO3ZJJF42 \
  | 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: 632bffea41a47778f772e29dbca525e6a5d5e8d95955fef19010c5fd111d4d3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cd78161fdd308781db04fbbebbdbe501a6a68956f512cebcbfa1c313f07ae90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-17T01:21:58Z",
    "title_canon_sha256": "ac293566dea3b0cad55b48670b7ff1dc7870370eb2bc0ac5f6815b6b93c083fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3999",
    "kind": "arxiv",
    "version": 1
  }
}