Pith Number

pith:QPGZRNYT

pith:2009:QPGZRNYTHZ6DKZHVMZUUNXSWT4

not attested not anchored not stored refs pending

Characterisation of the electromagnetic component in ultra-high energy inclined air showers

E. Zas, I. Valino, J. Alvarez-Muniz, M. Roth, R.A. Vazquez

arxiv:0910.2873 v1 · 2009-10-15 · 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{QPGZRNYTHZ6DKZHVMZUUNXSWT4}

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	2026-05-18T02:34:18.706155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83cd98b7133e7c3564f5666946de569f35e60275ed9dbe8278f32da474b12be3

Aliases

arxiv: 0910.2873 · arxiv_version: 0910.2873v1 · doi: 10.48550/arxiv.0910.2873 · pith_short_12: QPGZRNYTHZ6D · pith_short_16: QPGZRNYTHZ6DKZHV · pith_short_8: QPGZRNYT

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/QPGZRNYTHZ6DKZHVMZUUNXSWT4 \
  | 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: 83cd98b7133e7c3564f5666946de569f35e60275ed9dbe8278f32da474b12be3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7d0e85d0cca2c7a23fba40b89c165015b6f3d355a549a9714e75c2516e7afd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-15T14:00:50Z",
    "title_canon_sha256": "ecb4d6c580f1622859c79ba985926bc281830e9ef05fd7f0fdea4e65f54264de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2873",
    "kind": "arxiv",
    "version": 1
  }
}