Pith Number

pith:5RAUIQEY

pith:2014:5RAUIQEYVTXQKELGEO6OSLYHT4

not attested not anchored not stored refs pending

Free-space quantum key distribution by rotation-invariant twisted photons

Anna Sponselli, Fabio Sciarrino, Giuseppe Vallone, Lorenzo Marrucci, Paolo Villoresi, Sergei Slussarenko, Vincenzo D'Ambrosio

arxiv:1402.2932 v2 · 2014-02-12 · quant-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{5RAUIQEYVTXQKELGEO6OSLYHT4}

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	2026-05-18T02:44:40.256519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec41444098acef05116623bce92f079f2a32acfafec3d15f774bb9404153f859

Aliases

arxiv: 1402.2932 · arxiv_version: 1402.2932v2 · doi: 10.48550/arxiv.1402.2932 · pith_short_12: 5RAUIQEYVTXQ · pith_short_16: 5RAUIQEYVTXQKELG · pith_short_8: 5RAUIQEY

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/5RAUIQEYVTXQKELGEO6OSLYHT4 \
  | 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: ec41444098acef05116623bce92f079f2a32acfafec3d15f774bb9404153f859

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14e193b989b4d611a799b8963489ff9dfb8188d91337bf2f0e46d41a75ea4721",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-02-12T18:57:08Z",
    "title_canon_sha256": "158c2e024ce4bba5cb772cffdf8a4f2f00e69980b10dac77da8d140555863d75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2932",
    "kind": "arxiv",
    "version": 2
  }
}