Pith Number

pith:J33MCSS2

pith:2009:J33MCSS2F2YD6AN2WIQBYMG7ZF

not attested not anchored not stored refs pending

Air Shower Measurements with LOFAR

A. Horneffer, A. Nigl, H. Falcke, J. Kuijpers, J.R. H\"orandel, K. Singh, L. B\"ahren, O. Scholten, S. Buitink, S. Lafebre

arxiv:0903.2398 v1 · 2009-03-13 · 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{J33MCSS2F2YD6AN2WIQBYMG7ZF}

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	2026-05-18T02:35:00.443253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ef6c14a5a2eb03f01bab2201c30dfc94440f370fc9ec04e18491aa2c9755407

Aliases

arxiv: 0903.2398 · arxiv_version: 0903.2398v1 · doi: 10.48550/arxiv.0903.2398 · pith_short_12: J33MCSS2F2YD · pith_short_16: J33MCSS2F2YD6AN2 · pith_short_8: J33MCSS2

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/J33MCSS2F2YD6AN2WIQBYMG7ZF \
  | 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: 4ef6c14a5a2eb03f01bab2201c30dfc94440f370fc9ec04e18491aa2c9755407

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7399d5a5f07e01081ced213c2250cbffdc5f912e0a3890b2c6f1b118192c40e3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-03-13T14:31:43Z",
    "title_canon_sha256": "a1139c67d0c971b427fa61fed5b4bd0eb9a048e362cf67e9b46a1721eb3c03b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2398",
    "kind": "arxiv",
    "version": 1
  }
}