Pith Number

pith:W4BTBPSH

pith:2009:W4BTBPSHNHBWVDZJI37P4OAR7G

not attested not anchored not stored refs pending

Field Experiment on a Robust Hierarchical Metropolitan Quantum Cryptography Network

Dong Liu, Fangxing Xu, Guangcan Guo, Hongwei Li, Shuang Wang, Wei Chen, Yang Zhang, Yibo Zhao, Yun Liu, Zhengfu Han, Zheng Zhou, Zhenqiang Yin

arxiv:0906.3576 v4 · 2009-06-19 · 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{W4BTBPSHNHBWVDZJI37P4OAR7G}

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	2026-07-04T15:46:40.871226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b70330be4769c36a8f2946fefe3811f9b6ac1c410ff87377160ace14597a14c5

Aliases

arxiv: 0906.3576 · arxiv_version: 0906.3576v4 · doi: 10.48550/arxiv.0906.3576 · pith_short_12: W4BTBPSHNHBW · pith_short_16: W4BTBPSHNHBWVDZJ · pith_short_8: W4BTBPSH

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/W4BTBPSHNHBWVDZJI37P4OAR7G \
  | 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: b70330be4769c36a8f2946fefe3811f9b6ac1c410ff87377160ace14597a14c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "990d188488e36fe39a6a2c550100e7b37db8957580616737904bfc5013d8658a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-06-19T06:00:33Z",
    "title_canon_sha256": "1a4eddda39ffe385e48d59eeb184cfd1553d011547bef268e024d54de15f7a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3576",
    "kind": "arxiv",
    "version": 4
  }
}