Pith Number

pith:PADPHD7M

pith:2014:PADPHD7MHPX5OWTZWI3R4HXUHN

not attested not anchored not stored refs pending

On Spectrum Sharing Between Energy Harvesting Cognitive Radio Users and Primary Users

Ahmed El Shafie, Amr Mohamed, Mahmoud Ashour, Tamer Khattab

arxiv:1407.7267 v2 · 2014-07-27 · cs.NI · 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{PADPHD7MHPX5OWTZWI3R4HXUHN}

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	2026-05-18T02:46:14.362347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7806f38fec3befd75a79b2371e1ef43b4e501f76392a2d2c55867dde8c07a6ec

Aliases

arxiv: 1407.7267 · arxiv_version: 1407.7267v2 · doi: 10.48550/arxiv.1407.7267 · pith_short_12: PADPHD7MHPX5 · pith_short_16: PADPHD7MHPX5OWTZ · pith_short_8: PADPHD7M

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/PADPHD7MHPX5OWTZWI3R4HXUHN \
  | 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: 7806f38fec3befd75a79b2371e1ef43b4e501f76392a2d2c55867dde8c07a6ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa8c76cde8af9ec499dedc530690856ea610e5a32fc82ad964b43d92712fe370",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2014-07-27T18:11:18Z",
    "title_canon_sha256": "c799fa21cc3642aeb09680099472f108b3d072c0c7319c3e4af50532512ec776"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7267",
    "kind": "arxiv",
    "version": 2
  }
}