Pith Number

pith:4KVXVGS5

pith:2018:4KVXVGS5IB2BRDRQK3FICNU62R

not attested not anchored not stored refs pending

Implementation and Security Analysis of Practical Quantum Secure Direct Communication

Gui-Lu Long, Jiancun Gao, Liuguo Yin, Liyuan Song, Penghao Niu, Qin Huang, Ruoyang Qi, Wentao Hao, Zaisheng Lin, Zhen Sun

arxiv:1810.11806 v1 · 2018-10-28 · 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{4KVXVGS5IB2BRDRQK3FICNU62R}

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	2026-05-18T00:02:07.336258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2ab7a9a5d4074188e3056ca81369ed451d0e64360e9108adb2cc387d399ffab

Aliases

arxiv: 1810.11806 · arxiv_version: 1810.11806v1 · doi: 10.48550/arxiv.1810.11806 · pith_short_12: 4KVXVGS5IB2B · pith_short_16: 4KVXVGS5IB2BRDRQ · pith_short_8: 4KVXVGS5

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/4KVXVGS5IB2BRDRQK3FICNU62R \
  | 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: e2ab7a9a5d4074188e3056ca81369ed451d0e64360e9108adb2cc387d399ffab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fe521bf1aa4f649b79163540be3943924d400d74a6ad42ba560f30a7c6eb632",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-10-28T12:56:05Z",
    "title_canon_sha256": "12902707e6658dbbd6ad4038dc6009772df5f7f7a114b371434da065ca7d1049"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.11806",
    "kind": "arxiv",
    "version": 1
  }
}