Pith Number

pith:DNOFF6W4

pith:2011:DNOFF6W464MCLCH6T2N2TFLADH

not attested not anchored not stored refs pending

A Novel Two-stage Entropy-based Robust Cooperative Spectrum Sensing Scheme with Two-bit Decision in Cognitive Radio

Nan Zhao

arxiv:1109.6714 v1 · 2011-09-30 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DNOFF6W464MCLCH6T2N2TFLADH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:11:52.632103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b5c52fadcf7182588fe9e9ba9956019cc54426dce8406ee0fa006470dd285e8

Aliases

arxiv: 1109.6714 · arxiv_version: 1109.6714v1 · doi: 10.48550/arxiv.1109.6714 · pith_short_12: DNOFF6W464MC · pith_short_16: DNOFF6W464MCLCH6 · pith_short_8: DNOFF6W4

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/DNOFF6W464MCLCH6T2N2TFLADH \
  | 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: 1b5c52fadcf7182588fe9e9ba9956019cc54426dce8406ee0fa006470dd285e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d86b290a349eb438f2b9d223fa00d56fd176c906d3b9c64299144eb7f3c90a50",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-09-30T04:48:37Z",
    "title_canon_sha256": "b36261db5e43c06468969b9859a335284abbc616aa0bb89d9d9701265f984bd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6714",
    "kind": "arxiv",
    "version": 1
  }
}