Pith Number

pith:GPOOPMUN

pith:2009:GPOOPMUNF5NVMC36JJCVUZ3NOX

not attested not anchored not stored refs pending

Properties of simulated sunspot umbral dots

B. Beeck, L. Bharti, M. Schuessler

arxiv:0911.5068 v1 · 2009-11-26 · 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{GPOOPMUNF5NVMC36JJCVUZ3NOX}

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	2026-05-18T02:10:36.458680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33dce7b28d2f5b560b7e4a455a676d75c020bd05e352caacd646902905bd46fa

Aliases

arxiv: 0911.5068 · arxiv_version: 0911.5068v1 · doi: 10.48550/arxiv.0911.5068 · pith_short_12: GPOOPMUNF5NV · pith_short_16: GPOOPMUNF5NVMC36 · pith_short_8: GPOOPMUN

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/GPOOPMUNF5NVMC36JJCVUZ3NOX \
  | 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: 33dce7b28d2f5b560b7e4a455a676d75c020bd05e352caacd646902905bd46fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2cf69ab574101fecd85944a5b2f1555007f78a9a27e94a255a482ddcce05839",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-26T13:19:01Z",
    "title_canon_sha256": "a45f841233a33ee95eda02b2133369c28add8e97f8e456c31ecd650c15c70a00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.5068",
    "kind": "arxiv",
    "version": 1
  }
}