Pith Number

pith:RUJ6QVN4

pith:2019:RUJ6QVN4PZ4VRWFJXNX6SCAQ67

not attested not anchored not stored refs pending

The Puzzle of Muons in Extensive Air Showers

Maciej Rybczynski, Zbigniew Wlodarczyk

arxiv:1902.09988 v1 · 2019-02-26 · hep-ph · 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{RUJ6QVN4PZ4VRWFJXNX6SCAQ67}

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	2026-05-17T23:49:49.986395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d13e855bc7e7958d8a9bb6fe90810f7da4e5edeef34ec5b9e6b98fe068354cd

Aliases

arxiv: 1902.09988 · arxiv_version: 1902.09988v1 · doi: 10.48550/arxiv.1902.09988 · pith_short_12: RUJ6QVN4PZ4V · pith_short_16: RUJ6QVN4PZ4VRWFJ · pith_short_8: RUJ6QVN4

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/RUJ6QVN4PZ4VRWFJXNX6SCAQ67 \
  | 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: 8d13e855bc7e7958d8a9bb6fe90810f7da4e5edeef34ec5b9e6b98fe068354cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0af5dacfbd47be84759d79ba77d633510e5de2e23142b1cd69940ad8e6d5fb3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-02-26T15:10:14Z",
    "title_canon_sha256": "61507d030f208c4d0f45e6c6749f428986e453393e65d05f694ce4abf401d834"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09988",
    "kind": "arxiv",
    "version": 1
  }
}