Pith Number

pith:5VW2I4ZQ

pith:2012:5VW2I4ZQVCYVEBNF43RBTN54KX

not attested not anchored not stored refs pending

Experimental realization of large-alphabet quantum key distribution protocol using orbital angular momentum entanglement

Baoyu Zheng, Fei Cao, Hua Yang, Longyan Gong, Shengmei Zhao, Xiaoliang Dong, Yongqiang Li, Yubo Sheng

arxiv:1205.0851 v1 · 2012-05-04 · 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{5VW2I4ZQVCYVEBNF43RBTN54KX}

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	2026-05-18T01:57:38.176959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed6da47330a8b15205a5e6e219b7bc55c45387d9b7ab101fe9e13f712ea78d2f

Aliases

arxiv: 1205.0851 · arxiv_version: 1205.0851v1 · doi: 10.48550/arxiv.1205.0851 · pith_short_12: 5VW2I4ZQVCYV · pith_short_16: 5VW2I4ZQVCYVEBNF · pith_short_8: 5VW2I4ZQ

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/5VW2I4ZQVCYVEBNF43RBTN54KX \
  | 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: ed6da47330a8b15205a5e6e219b7bc55c45387d9b7ab101fe9e13f712ea78d2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "892290fb8f37673375184c4d952a33432f115167fd8d28c5332c92fe3d56e882",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-04T03:29:09Z",
    "title_canon_sha256": "bfc2b68eff0ceaddad17705e91092a1119ed632a6dc363539b6510aa4ac1c56c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0851",
    "kind": "arxiv",
    "version": 1
  }
}