Pith Number

pith:XNJK65ZJ

pith:2015:XNJK65ZJMGFBPDVWRTFLVF3TSZ

not attested not anchored not stored refs pending

Level and length of cyclic solar activity during the Maunder minimum as deduced from the active day statistics

G. A. Kovaltsov, I.G. Usoskin, J.M. Vaquero, M.C. Gallego, V.M.S. Carrasco

arxiv:1503.07664 v1 · 2015-03-26 · 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{XNJK65ZJMGFBPDVWRTFLVF3TSZ}

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	2026-05-18T02:16:38.903351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb52af7729618a178eb68ccaba977396544f6e67db994182c90b6c6d6f900753

Aliases

arxiv: 1503.07664 · arxiv_version: 1503.07664v1 · doi: 10.48550/arxiv.1503.07664 · pith_short_12: XNJK65ZJMGFB · pith_short_16: XNJK65ZJMGFBPDVW · pith_short_8: XNJK65ZJ

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/XNJK65ZJMGFBPDVWRTFLVF3TSZ \
  | 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: bb52af7729618a178eb68ccaba977396544f6e67db994182c90b6c6d6f900753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7853fb9d9307c00d9afa400964fb8a124859308ffb89a3b61e402cce511505c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-26T09:54:02Z",
    "title_canon_sha256": "ad597a30cac683ed715ba8da1fac62d771d58bf09f146a9ee5125d2b2f498edd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07664",
    "kind": "arxiv",
    "version": 1
  }
}