Pith Number

pith:M7NKL3OI

pith:2012:M7NKL3OIV7EV3VTTOIGFQXMW7W

not attested not anchored not stored refs pending

Long Time Oscillations of Wolf Number Series Autocorrelation Function and Possibility of Solar Activity Prediction

S. V. Letunovskiy, V. M. Zhuravlev

arxiv:1202.1774 v1 · 2012-02-08 · astro-ph.SR · physics.data-an

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7NKL3OIV7EV3VTTOIGFQXMW7W}

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	2026-05-18T04:02:51.137955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67daa5edc8afc95dd673720c585d96fdb3210494387494ab0d234beb4fdbb319

Aliases

arxiv: 1202.1774 · arxiv_version: 1202.1774v1 · doi: 10.48550/arxiv.1202.1774 · pith_short_12: M7NKL3OIV7EV · pith_short_16: M7NKL3OIV7EV3VTT · pith_short_8: M7NKL3OI

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/M7NKL3OIV7EV3VTTOIGFQXMW7W \
  | 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: 67daa5edc8afc95dd673720c585d96fdb3210494387494ab0d234beb4fdbb319

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e662610a3f6f5e57b590c55a39a35d0d15a4bfd36c95f3109cdf767b0a328081",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-02-08T17:25:09Z",
    "title_canon_sha256": "f7954573fbbb7e07c8a7aa7d69490120729026079a1904c0bd17182c6cbed13f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1774",
    "kind": "arxiv",
    "version": 1
  }
}