Pith Number

pith:CCAZBRDP

pith:2006:CCAZBRDPXKBBBOHQCIFIQRAQ5H

not attested not anchored not stored refs pending

Economical Quantum Secure Direct Communication Network with Single Photons

Chun-Yan Li, Fu-Guo Deng, Hong-Yu Zhou, Ping Zhou, Xi-Han Li

arxiv:quant-ph/0606008 v2 · 2006-06-01 · 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{CCAZBRDPXKBBBOHQCIFIQRAQ5H}

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	2026-07-04T17:03:01.694386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

108190c46fba8210b8f0120a884410e9f49094862707755d964158649108df85

Aliases

arxiv: quant-ph/0606008 · arxiv_version: quant-ph/0606008v2 · doi: 10.48550/arxiv.quant-ph/0606008 · pith_short_12: CCAZBRDPXKBB · pith_short_16: CCAZBRDPXKBBBOHQ · pith_short_8: CCAZBRDP

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/CCAZBRDPXKBBBOHQCIFIQRAQ5H \
  | 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: 108190c46fba8210b8f0120a884410e9f49094862707755d964158649108df85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ca69603d67faa3fc00b36b6f07ab0b293d7d910f02ee3ae12a2addbec6e6a57",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-06-01T07:36:34Z",
    "title_canon_sha256": "a1e69adc91cd232e6db85b18dd4a21bd762876b478472a77b1bfec7650f24f29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0606008",
    "kind": "arxiv",
    "version": 2
  }
}