Pith Number

pith:QLKPPPJU

pith:2008:QLKPPPJUWL3ZMYDASHALV65SIN

not attested not anchored not stored refs pending

Amplitude calibration of a digital radio antenna array for measuring cosmic ray air showers

A. Hakenjos, A. Haungs, A. Horneffer, H. Bozdog, H. Falcke, J. Bluemer, M.J. Arts, O. Kroemer, P.G. Isar, S. Nehls, T. Huege, W.A. van Cappellen

arxiv:0802.4151 v1 · 2008-02-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLKPPPJUWL3ZMYDASHALV65SIN}

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	2026-07-04T15:44:42.903182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82d4f7bd34b2f796606091c0bafbb243666f0acfbbe7654efc79fdd38ca6d577

Aliases

arxiv: 0802.4151 · arxiv_version: 0802.4151v1 · doi: 10.48550/arxiv.0802.4151 · pith_short_12: QLKPPPJUWL3Z · pith_short_16: QLKPPPJUWL3ZMYDA · pith_short_8: QLKPPPJU

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/QLKPPPJUWL3ZMYDASHALV65SIN \
  | 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: 82d4f7bd34b2f796606091c0bafbb243666f0acfbbe7654efc79fdd38ca6d577

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1051e9c4e8adf1bb63c7da53d9d667ec49d76290925fe08a97d0f50142c1f55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-28T10:44:18Z",
    "title_canon_sha256": "0cec9d85857ce11b007eab23ae104acf15aa8a883c2401ecd81389f357350c7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.4151",
    "kind": "arxiv",
    "version": 1
  }
}