Pith Number

pith:M6UD72CT

pith:2000:M6UD72CT5MX7N7HCWMCY2PLITG

not attested not anchored not stored refs pending

Wavelet entropy as a measure of solar cycle complexity

Stefano Sello

arxiv:astro-ph/0005334 v1 · 2000-05-16 · astro-ph · 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{M6UD72CT5MX7N7HCWMCY2PLITG}

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	2026-05-18T01:40:47.816333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67a83fe853eb2ff6fce2b3058d3d6899919123eb74ad97fc0ab4b8e977fd4a62

Aliases

arxiv: astro-ph/0005334 · arxiv_version: astro-ph/0005334v1 · doi: 10.48550/arxiv.astro-ph/0005334 · pith_short_12: M6UD72CT5MX7 · pith_short_16: M6UD72CT5MX7N7HC · pith_short_8: M6UD72CT

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/M6UD72CT5MX7N7HCWMCY2PLITG \
  | 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: 67a83fe853eb2ff6fce2b3058d3d6899919123eb74ad97fc0ab4b8e977fd4a62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4675d3302a49e17892143dfb9c6cf0b7e4b5af83ebe38c6e106eb7e51062fa92",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-16T08:38:08Z",
    "title_canon_sha256": "b7b2cfea782e952736288e9d384bbf980d32f331612e3db4d4a5e9b7fffaa07b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005334",
    "kind": "arxiv",
    "version": 1
  }
}