Pith Number

pith:CRWAK3VR

pith:2012:CRWAK3VRDIKW65SYFDDKNHQ4MX

not attested not anchored not stored refs pending

Random Subcarrier Allocation in OFDM-Based Cognitive Radio Networks

Erchin Serpedin, Khalid A. Qaraqe, Mohamed M. Abdallah, Sabit Ekin

arxiv:1207.0484 v1 · 2012-07-02 · cs.IT · math.IT · math.PR · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CRWAK3VRDIKW65SYFDDKNHQ4MX}

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	2026-05-18T01:56:35.611864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

146c056eb11a156f765828c6a69e1c65c05b56aa0fbbf0aa8de1465e33380344

Aliases

arxiv: 1207.0484 · arxiv_version: 1207.0484v1 · doi: 10.48550/arxiv.1207.0484 · pith_short_12: CRWAK3VRDIKW · pith_short_16: CRWAK3VRDIKW65SY · pith_short_8: CRWAK3VR

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/CRWAK3VRDIKW65SYFDDKNHQ4MX \
  | 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: 146c056eb11a156f765828c6a69e1c65c05b56aa0fbbf0aa8de1465e33380344

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e0a6557ddab05521662224da050dd5008bbe0a3beb3da4b4c7b49153496cd67",
    "cross_cats_sorted": [
      "math.IT",
      "math.PR",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-02T19:43:36Z",
    "title_canon_sha256": "cc17c6b07c8033e2e2d79b85375b50839e48bd98ab56e1aeab603977750361cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0484",
    "kind": "arxiv",
    "version": 1
  }
}