Pith Number

pith:IEQ52RXU

pith:2004:IEQ52RXUMMOHOV3DFAJPAYL2OS

not attested not anchored not stored refs pending

Quantum stream cipher based on optical communications

Katsuyoshi Harasawa, Kentaro Kato, Masaki Sohma, Osamu Hirota, Tsuyoshi S. Usuda

arxiv:quant-ph/0407062 v1 · 2004-07-08 · 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{IEQ52RXUMMOHOV3DFAJPAYL2OS}

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	2026-05-18T01:37:58.504723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4121dd46f4631c7757632812f0617a74b5365f78363ca42301b6c9c62df13523

Aliases

arxiv: quant-ph/0407062 · arxiv_version: quant-ph/0407062v1 · doi: 10.48550/arxiv.quant-ph/0407062 · pith_short_12: IEQ52RXUMMOH · pith_short_16: IEQ52RXUMMOHOV3D · pith_short_8: IEQ52RXU

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/IEQ52RXUMMOHOV3DFAJPAYL2OS \
  | 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: 4121dd46f4631c7757632812f0617a74b5365f78363ca42301b6c9c62df13523

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f759f5a4506f278ae4c604e580feca083e5d622ee81a9d06b16ebe82ada5d32",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-07-08T05:21:26Z",
    "title_canon_sha256": "d76591a4e994cbd63d8509e615e45a09b244d188f8019685f109f5c683ac2d82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0407062",
    "kind": "arxiv",
    "version": 1
  }
}