Pith Number

pith:IU7OL6RI

pith:2011:IU7OL6RI4CMEFRZYFDNEHVA3BH

not attested not anchored not stored refs pending

The observation of Extensive Air Showers from an Earth-Orbiting Satellite

A. Petrolini, A. Thea, M. Pallavicini, R. Pesce

arxiv:1105.2129 v2 · 2011-05-11 · astro-ph.IM · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IU7OL6RI4CMEFRZYFDNEHVA3BH}

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	2026-05-18T04:06:20.959101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

453ee5fa28e09842c73828da43d41b09ef0433f94bfca47d1e9f4a34cf956755

Aliases

arxiv: 1105.2129 · arxiv_version: 1105.2129v2 · doi: 10.48550/arxiv.1105.2129 · pith_short_12: IU7OL6RI4CME · pith_short_16: IU7OL6RI4CMEFRZY · pith_short_8: IU7OL6RI

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/IU7OL6RI4CMEFRZYFDNEHVA3BH \
  | 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: 453ee5fa28e09842c73828da43d41b09ef0433f94bfca47d1e9f4a34cf956755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f256bb163c08df1e4f0c3dbea436e24863e4c4049fe76ea17b68b1494415dbf",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-05-11T09:09:48Z",
    "title_canon_sha256": "43917de29db5ed7c141700f28071aa53630ca9d258b637eb9cd5853ad906b721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2129",
    "kind": "arxiv",
    "version": 2
  }
}