Pith Number

pith:HNGO4SLX

pith:2005:HNGO4SLX4P74LTIZI7KQAPLR6A

not attested not anchored not stored refs pending

On the size distribution of sunspot groups in the Greenwich sunspot record 1874-1976

I. Baumann, S.K. Solanki

arxiv:astro-ph/0510516 v1 · 2005-10-18 · 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{HNGO4SLX4P74LTIZI7KQAPLR6A}

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	2026-07-04T16:52:59.247688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b4cee4977e3ffc5cd1947d5003d71f027ba0f3fe08fcf4d9dd830401bf072a9

Aliases

arxiv: astro-ph/0510516 · arxiv_version: astro-ph/0510516v1 · doi: 10.48550/arxiv.astro-ph/0510516 · pith_short_12: HNGO4SLX4P74 · pith_short_16: HNGO4SLX4P74LTIZ · pith_short_8: HNGO4SLX

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/HNGO4SLX4P74LTIZI7KQAPLR6A \
  | 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: 3b4cee4977e3ffc5cd1947d5003d71f027ba0f3fe08fcf4d9dd830401bf072a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "126a8cef697f27250093d63c71b28b20d2f4e68d904167c6432afcd7a97d0645",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-10-18T11:16:48Z",
    "title_canon_sha256": "4b6aa6907d9d148087e184ac4025fbfc0adc20fd615be1efad8a5df453263a99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0510516",
    "kind": "arxiv",
    "version": 1
  }
}