Pith Number

pith:TCDUUHFW

pith:2007:TCDUUHFWV7A4UWAFTVRK2RVGW3

not attested not anchored not stored refs pending

Grand minima and maxima of solar activity: New observational constraints

G.A. Kovaltsov, I.G. Usoskin, S.K. Solanki

arxiv:0706.0385 v1 · 2007-06-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TCDUUHFWV7A4UWAFTVRK2RVGW3}

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	2026-05-18T02:35:31.043220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98874a1cb6afc1ca58059d62ad46a6b6f73b44a8b925d82ac6b41ad7de377a0f

Aliases

arxiv: 0706.0385 · arxiv_version: 0706.0385v1 · doi: 10.48550/arxiv.0706.0385 · pith_short_12: TCDUUHFWV7A4 · pith_short_16: TCDUUHFWV7A4UWAF · pith_short_8: TCDUUHFW

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/TCDUUHFWV7A4UWAFTVRK2RVGW3 \
  | 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: 98874a1cb6afc1ca58059d62ad46a6b6f73b44a8b925d82ac6b41ad7de377a0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b490fddfdf1ad9d668042826763de51cd479990922e1edaed972ac330c313a0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-04T07:40:16Z",
    "title_canon_sha256": "bc8d693e0df07ebb15bede000e840c4dd45373083ed3bee3ed593d696dfcb36a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.0385",
    "kind": "arxiv",
    "version": 1
  }
}