Pith Number

pith:WMO7CX4S

pith:2018:WMO7CX4SIGS2Y2AABMLSMY6PWB

not attested not anchored not stored refs pending

Energy-Efficient Power Loading for OFDM-based Cognitive Radio Systems with Channel Uncertainties

Ebrahim Bedeer, Kareem E. Baddour, Mohamed H. Ahmed, Octavia A. Dobre, Osama Amin

arxiv:1801.05353 v2 · 2018-01-12 · eess.SP · 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{WMO7CX4SIGS2Y2AABMLSMY6PWB}

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	2026-05-17T23:54:28.325480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b31df15f9241a5ac68000b172663cfb0463a5353a3d9afca19ad2ac025194c94

Aliases

arxiv: 1801.05353 · arxiv_version: 1801.05353v2 · doi: 10.48550/arxiv.1801.05353 · pith_short_12: WMO7CX4SIGS2 · pith_short_16: WMO7CX4SIGS2Y2AA · pith_short_8: WMO7CX4S

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/WMO7CX4SIGS2Y2AABMLSMY6PWB \
  | 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: b31df15f9241a5ac68000b172663cfb0463a5353a3d9afca19ad2ac025194c94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1ad327de7f9260c7d0a9094a0fadd917769da24fcd805d5c7f64080295a75d9",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-01-12T17:09:39Z",
    "title_canon_sha256": "1447e5edbe90ba9ad3de0d1b2382e4bfa50f29bd41afd01fe4258491db7b82dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05353",
    "kind": "arxiv",
    "version": 2
  }
}