Pith Number

pith:4M2AZYPP

pith:2013:4M2AZYPP4N3QZPWJZ42YBQJSV4

not attested not anchored not stored refs pending

Wideband Spectrum Sensing with Sub-Nyquist Sampling in Cognitive Radios

Arumugam Nallanathan, Hongjian Sun, H. Vincent Poor, Jing Jiang, Wei-Yu Chiu

arxiv:1302.1847 v1 · 2013-02-07 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4M2AZYPP4N3QZPWJZ42YBQJSV4}

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	2026-05-18T03:31:32.445243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3340ce1efe3770cbec9cf3580c132af0bd6bd83480634fbc383033895bb4271

Aliases

arxiv: 1302.1847 · arxiv_version: 1302.1847v1 · doi: 10.48550/arxiv.1302.1847 · pith_short_12: 4M2AZYPP4N3Q · pith_short_16: 4M2AZYPP4N3QZPWJ · pith_short_8: 4M2AZYPP

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/4M2AZYPP4N3QZPWJZ42YBQJSV4 \
  | 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: e3340ce1efe3770cbec9cf3580c132af0bd6bd83480634fbc383033895bb4271

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a5d9ceecf48db5ffded99a7a49594362f703f2c37b49ec84030963d6b2522e4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-02-07T20:15:10Z",
    "title_canon_sha256": "5059d99cf7f1cc8fc9daeb930bac1448d4b5886a933b654b74fbc2038295a8df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1847",
    "kind": "arxiv",
    "version": 1
  }
}