Pith Number

pith:I4LYO4G7

pith:2015:I4LYO4G7KKSZWXI2H3XDJDTJA6

not attested not anchored not stored refs pending

A New Approach to the Link Budget Concept for an OAM Communication Link

Andrea Cagliero, Assunta De Vita, Bruno Sacco, Rossella Gaffoglio

arxiv:1503.05780 v2 · 2015-03-19 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4LYO4G7KKSZWXI2H3XDJDTJA6}

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	2026-05-18T01:17:44.095850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47178770df52a59b5d1a3eee348e690789786e2a4a9eb29a5653c3106e4ca265

Aliases

arxiv: 1503.05780 · arxiv_version: 1503.05780v2 · doi: 10.48550/arxiv.1503.05780 · pith_short_12: I4LYO4G7KKSZ · pith_short_16: I4LYO4G7KKSZWXI2 · pith_short_8: I4LYO4G7

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/I4LYO4G7KKSZWXI2H3XDJDTJA6 \
  | 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: 47178770df52a59b5d1a3eee348e690789786e2a4a9eb29a5653c3106e4ca265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f912997f41445e14908a35c005fbc6f959075a248c0075ac835c9985aab95edf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-03-19T14:29:03Z",
    "title_canon_sha256": "a746c4f28c471f50e6f650ed96ba1c7b03d99db897fbabe1d8b0f600c4acaa03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05780",
    "kind": "arxiv",
    "version": 2
  }
}