Pith Number

pith:YWGUESXB

pith:2017:YWGUESXBCYTS44HZ3S2XJGBXGL

not attested not anchored not stored refs pending

Orbital Angular Momentum Antennas: Understanding Actual Possibilities Through the Aperture Antennas Theory

Andrea Francesco Morabito, Loreto Di Donato, Tommaso Isernia

arxiv:1702.05667 v2 · 2017-01-28 · physics.class-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YWGUESXBCYTS44HZ3S2XJGBXGL}

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	2026-05-18T00:16:09.292151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c58d424ae116272e70f9dcb574983732dc1bdba4d32f8816b450de782c465bf8

Aliases

arxiv: 1702.05667 · arxiv_version: 1702.05667v2 · doi: 10.48550/arxiv.1702.05667 · pith_short_12: YWGUESXBCYTS · pith_short_16: YWGUESXBCYTS44HZ · pith_short_8: YWGUESXB

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/YWGUESXBCYTS44HZ3S2XJGBXGL \
  | 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: c58d424ae116272e70f9dcb574983732dc1bdba4d32f8816b450de782c465bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c95fd43718c95d95c6af35cc50013bc322b0ca3da1dc4806711320a95df77a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2017-01-28T11:25:57Z",
    "title_canon_sha256": "89c080c3bf775cd44be15033c77a8001b83c835155b13e65667c5a9d36aaa7e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05667",
    "kind": "arxiv",
    "version": 2
  }
}