Pith Number

pith:P4DZZZBA

pith:2011:P4DZZZBA2CPPOSHFDCCLF7PJH3

not attested not anchored not stored refs pending

High-capacity quantum secure direct communication based on quantum hyperdense coding with hyperentanglement

Fang-Fang Du, Fu-Guo Deng, Tao Li, Tie-Jun Wang

arxiv:1103.0471 v2 · 2011-03-02 · 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{P4DZZZBA2CPPOSHFDCCLF7PJH3}

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	2026-05-18T04:27:03.467467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f079ce420d09ef748e51884b2fde93ed065dd96180b555f5ff1e42d9f363054

Aliases

arxiv: 1103.0471 · arxiv_version: 1103.0471v2 · doi: 10.48550/arxiv.1103.0471 · pith_short_12: P4DZZZBA2CPP · pith_short_16: P4DZZZBA2CPPOSHF · pith_short_8: P4DZZZBA

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/P4DZZZBA2CPPOSHFDCCLF7PJH3 \
  | 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: 7f079ce420d09ef748e51884b2fde93ed065dd96180b555f5ff1e42d9f363054

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a58b27cc9784d8016b5e61ca40c7671b078c228bf6416710bd66060aa704b6ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-03-02T16:17:08Z",
    "title_canon_sha256": "d91eb9e2d417c5579698e80053171f8437b232bba6300d4fefafc9b6b684c6bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0471",
    "kind": "arxiv",
    "version": 2
  }
}