Pith Number

pith:FWLORVYL

pith:2009:FWLORVYL5X4MELEJSZHVHHXG4E

not attested not anchored not stored refs pending

A Low-Overhead Energy Detection Based Cooperative Sensing Protocol for Cognitive Radio Systems

Shunqing Zhang, Tianyu Wu, Vincent K. N. Lau

arxiv:0908.2529 v1 · 2009-08-18 · 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{FWLORVYL5X4MELEJSZHVHHXG4E}

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	2026-05-18T00:58:19.979798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d96e8d70bedf8c22c89964f539ee6e122ad307665fab56b660b66bda3b87d31

Aliases

arxiv: 0908.2529 · arxiv_version: 0908.2529v1 · doi: 10.48550/arxiv.0908.2529 · pith_short_12: FWLORVYL5X4M · pith_short_16: FWLORVYL5X4MELEJ · pith_short_8: FWLORVYL

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/FWLORVYL5X4MELEJSZHVHHXG4E \
  | 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: 2d96e8d70bedf8c22c89964f539ee6e122ad307665fab56b660b66bda3b87d31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c8578ce91dba3c503ee70440789242cbc60e88cd54bd4fa4d1b0c69bdd70f8f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-08-18T09:36:54Z",
    "title_canon_sha256": "4f34c1fee286e2a345da0863c0dbdaa01b1482da7d85550cf9d3dbe5f23b84d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2529",
    "kind": "arxiv",
    "version": 1
  }
}