Pith Number

pith:WCKWZDNU

pith:2004:WCKWZDNUJHVCKESYEU7HOK6ZPJ

not attested not anchored not stored refs pending

Quantum key distribution using polarized coherent states

A. Vidiella-Barranco, Brazil), L.F.M. Borelli (Universidade Estadual de Campinas

arxiv:quant-ph/0403076 v4 · 2004-03-09 · quant-ph · cs.CR · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WCKWZDNUJHVCKESYEU7HOK6ZPJ}

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	2026-05-18T01:20:54.234640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0956c8db449ea251258253e772bd97a4fab228a3f782be3f8d36b818d51f61f

Aliases

arxiv: quant-ph/0403076 · arxiv_version: quant-ph/0403076v4 · doi: 10.48550/arxiv.quant-ph/0403076 · pith_short_12: WCKWZDNUJHVC · pith_short_16: WCKWZDNUJHVCKESY · pith_short_8: WCKWZDNU

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/WCKWZDNUJHVCKESYEU7HOK6ZPJ \
  | 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: b0956c8db449ea251258253e772bd97a4fab228a3f782be3f8d36b818d51f61f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ccbf0115bdf473d5f6b3520e64fccc99a1f4400b4c2c8e7c0c89596c06133d3",
    "cross_cats_sorted": [
      "cs.CR",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-03-09T20:39:37Z",
    "title_canon_sha256": "178c2ad1f8d0c2cc32419d0cd2a8167b7b7ad59455518069fbbb8aa4c7cfcc90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0403076",
    "kind": "arxiv",
    "version": 4
  }
}