Pith Number

pith:755AB4W5

pith:2009:755AB4W5Q63DCAT74OAIRHYD7J

not attested not anchored not stored refs pending

Ultra-High Energy Cosmic Particles studies from space: super-EUSO, a possible next-generation experiment

Alessandro Petrolini (Dipartimento di Fisica dell'Universit\`a di Genova e INFN sezione di Genova, Genova, Italia), Via Dodecaneso 33

arxiv:0909.5220 v1 · 2009-09-29 · 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{755AB4W5Q63DCAT74OAIRHYD7J}

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	2026-05-18T04:27:28.301064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff7a00f2dd87b631027fe380889f03fa74f6fa6419fbf39236d84277e3a1d758

Aliases

arxiv: 0909.5220 · arxiv_version: 0909.5220v1 · doi: 10.48550/arxiv.0909.5220 · pith_short_12: 755AB4W5Q63D · pith_short_16: 755AB4W5Q63DCAT7 · pith_short_8: 755AB4W5

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/755AB4W5Q63DCAT74OAIRHYD7J \
  | 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: ff7a00f2dd87b631027fe380889f03fa74f6fa6419fbf39236d84277e3a1d758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceba9833c728d9ef9a8ce594505e627897d4009a71ced82eae4def0dad73619a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-09-29T14:29:58Z",
    "title_canon_sha256": "da978ac1055fee87d5caf0056dc63f2257a9f0a9a4444cd0d2eca279545f2ccf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5220",
    "kind": "arxiv",
    "version": 1
  }
}