Pith Number

pith:VSEYHBDW

pith:2014:VSEYHBDW3EAPIBYWHCF2CXHR4R

not attested not anchored not stored refs pending

Performance Metrics and Design Parameters for a Free-space Communication Link Based on Multiplexing of Multiple Orbital-Angular-Momentum Beams

Alan E. Willner, Andreas F. Molisch, Guodong Xie, Hao Huang, Long Li, Martin P. J. Lavery, Moshe Tur, Nima Ashrafi, Nisar Ahmed, Solyman Ashrafi, Yan Yan, Yongxiong Ren, Zhe Zhao

arxiv:1408.6744 v1 · 2014-08-28 · physics.optics · 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{VSEYHBDW3EAPIBYWHCF2CXHR4R}

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	2026-05-18T02:44:00.937429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac89838476d900f40716388ba15cf1e44bddd46037748904275f0bbce7e6a924

Aliases

arxiv: 1408.6744 · arxiv_version: 1408.6744v1 · doi: 10.48550/arxiv.1408.6744 · pith_short_12: VSEYHBDW3EAP · pith_short_16: VSEYHBDW3EAPIBYW · pith_short_8: VSEYHBDW

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/VSEYHBDW3EAPIBYWHCF2CXHR4R \
  | 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: ac89838476d900f40716388ba15cf1e44bddd46037748904275f0bbce7e6a924

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaf7ab11f195affb8d2c796b63876178674f20953a804e7c5bbcc040a34be745",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-08-28T15:05:28Z",
    "title_canon_sha256": "062289701e816c2e5a8f3940a86630621bb04f55d242fb800d83b8c6ed39f9be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6744",
    "kind": "arxiv",
    "version": 1
  }
}