Pith Number

pith:2UIYA2O7

pith:2015:2UIYA2O7DFUIKRVCPNSL6OB3MG

not attested not anchored not stored refs pending

Hybrid Radio/Free-Space Optical Design for Next Generation Backhaul Systems

Ahmed Douik, Hayssam Dahrouj, Mohamed-Slim Alouini, Tareq Y. Al-Naffouri

arxiv:1502.00137 v2 · 2015-01-31 · 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{2UIYA2O7DFUIKRVCPNSL6OB3MG}

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	2026-05-18T01:28:14.583431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5118069df19688546a27b64bf383b61aad8a4f801f2d4616059dc57694a8014

Aliases

arxiv: 1502.00137 · arxiv_version: 1502.00137v2 · doi: 10.48550/arxiv.1502.00137 · pith_short_12: 2UIYA2O7DFUI · pith_short_16: 2UIYA2O7DFUIKRVC · pith_short_8: 2UIYA2O7

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/2UIYA2O7DFUIKRVCPNSL6OB3MG \
  | 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: d5118069df19688546a27b64bf383b61aad8a4f801f2d4616059dc57694a8014

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a83b745a1d22b56cc0d567b0f720a173c961107533b594af462a3f7a4c602391",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-01-31T16:41:42Z",
    "title_canon_sha256": "f8b53646291a9c74ec9d6a2daf2e6ca3d479abca0ac038fc1f64c590b9ed871a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00137",
    "kind": "arxiv",
    "version": 2
  }
}