Pith Number

pith:5Q4O4WIT

pith:2012:5Q4O4WITYZHTML5M4PPCDX4VNO

not attested not anchored not stored refs pending

Comment on 'Encoding many channels on the same frequency through radio vorticity: first experimental test'

Christophe Craeye, Julien Perruisseau-Carrier, Michele Tamagnone

arxiv:1210.5365 v1 · 2012-10-19 · 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{5Q4O4WITYZHTML5M4PPCDX4VNO}

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	2026-05-18T03:41:19.872511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec38ee5913c64f362face3de21df956b8e135f1e9b5483c2def69880391a9659

Aliases

arxiv: 1210.5365 · arxiv_version: 1210.5365v1 · doi: 10.48550/arxiv.1210.5365 · pith_short_12: 5Q4O4WITYZHT · pith_short_16: 5Q4O4WITYZHTML5M · pith_short_8: 5Q4O4WIT

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/5Q4O4WITYZHTML5M4PPCDX4VNO \
  | 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: ec38ee5913c64f362face3de21df956b8e135f1e9b5483c2def69880391a9659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67490f02df7fa4ab94c8692bec825db4935351458809346025d7e1b952bc176f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-10-19T10:02:27Z",
    "title_canon_sha256": "989dc850799662afbac25729d7c17abd9c12135f6dbf87ce251e5ed4e8191eb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5365",
    "kind": "arxiv",
    "version": 1
  }
}