Pith Number

pith:23TQP7MJ

pith:2011:23TQP7MJ744JHXKO4ND3MN3SKH

not attested not anchored not stored refs pending

Revisited sunspot data: A new scenario for the onset of the Maunder minimum

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

arxiv:1103.1520 v1 · 2011-03-08 · 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{23TQP7MJ744JHXKO4ND3MN3SKH}

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	2026-05-18T02:02:56.445947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6e707fd89ff3893dd4ee347b6377251c412bbdd426a310c592e1cb89c7deb8b

Aliases

arxiv: 1103.1520 · arxiv_version: 1103.1520v1 · doi: 10.48550/arxiv.1103.1520 · pith_short_12: 23TQP7MJ744J · pith_short_16: 23TQP7MJ744JHXKO · pith_short_8: 23TQP7MJ

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/23TQP7MJ744JHXKO4ND3MN3SKH \
  | 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: d6e707fd89ff3893dd4ee347b6377251c412bbdd426a310c592e1cb89c7deb8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bec4a960a4c1f241136e471bd491c781ca932a3b31eef5bdc365f68ec522211e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-08T13:08:05Z",
    "title_canon_sha256": "352d66fb83b13d96c06a046867b4ffa6148bda2a86a850f9c98403574296605a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1520",
    "kind": "arxiv",
    "version": 1
  }
}