Pith Number

pith:ALGK5JQW

pith:2000:ALGK5JQWDGHW6E74VABNOV3DMN

not attested not anchored not stored refs pending

Efficient Quantum Key Distribution Scheme And Proof of Its Unconditional Security

H. F. Chau (University of Hong Kong), Hoi-Kwong Lo (University of Toronto), M. Ardehali

arxiv:quant-ph/0011056 v3 · 2000-11-14 · 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{ALGK5JQWDGHW6E74VABNOV3DMN}

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	2026-05-18T01:05:05.188348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02ccaea616198f6f13fca802d75763634b576351c9b6271d8055bbf9f9fcef0b

Aliases

arxiv: quant-ph/0011056 · arxiv_version: quant-ph/0011056v3 · doi: 10.48550/arxiv.quant-ph/0011056 · pith_short_12: ALGK5JQWDGHW · pith_short_16: ALGK5JQWDGHW6E74 · pith_short_8: ALGK5JQW

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/ALGK5JQWDGHW6E74VABNOV3DMN \
  | 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: 02ccaea616198f6f13fca802d75763634b576351c9b6271d8055bbf9f9fcef0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82426cc9d1f4669a2043e044e20dd59c98550d63aba91b059272c4debd68d898",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-11-14T00:12:34Z",
    "title_canon_sha256": "fd8f2c7a4c27c272c151b74502ddedb5ca3ffc06032e54f72d6fa257881b4992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0011056",
    "kind": "arxiv",
    "version": 3
  }
}