Pith Number

pith:EHEZE22U

pith:2009:EHEZE22U3PBXIKM4FB3SIGMYKU

not attested not anchored not stored refs pending

Observation of an energetic radiation burst from mountain-top thunderclouds

H. Kato, H. Tsuchiya, K. Makishima, K. Nakazawa, M. Okano, M. Takita, S. Torii, T. Enoto, T. Fukuyama, T. Torii, T. Yamaguchi, T. Yuasa

arxiv:0906.0781 v1 · 2009-06-03 · physics.geo-ph · astro-ph.EP · physics.ao-ph · physics.plasm-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{EHEZE22U3PBXIKM4FB3SIGMYKU}

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	2026-07-04T15:44:58.418760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21c9926b54dbc374299c2877241998553a892c2cac43a44835a5f471c6707732

Aliases

arxiv: 0906.0781 · arxiv_version: 0906.0781v1 · doi: 10.48550/arxiv.0906.0781 · pith_short_12: EHEZE22U3PBX · pith_short_16: EHEZE22U3PBXIKM4 · pith_short_8: EHEZE22U

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/EHEZE22U3PBXIKM4FB3SIGMYKU \
  | 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: 21c9926b54dbc374299c2877241998553a892c2cac43a44835a5f471c6707732

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a28f994f3a573b894518e4502998a4507b5da477f0ebd12c5503e34939d3bac",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.ao-ph",
      "physics.plasm-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2009-06-03T20:51:49Z",
    "title_canon_sha256": "8a9d1ce287b4d0ad3f03973059597259e74343f97764867d9c74c60d77a54174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0781",
    "kind": "arxiv",
    "version": 1
  }
}