Pith Number

pith:KAVGFC7A

pith:1999:KAVGFC7APBOMGYO6SANE3YI37L

not attested not anchored not stored refs pending

Quantum Key Distribution using Two Coherent States of Light and their Superposition

A. Tomita, Japan), K. Nakamura (Fundamental Res. Labs., NEC Corporation, Y. Chiba-Kohno, Y. Nambu

arxiv:quant-ph/9911035 v2 · 1999-11-09 · 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{KAVGFC7APBOMGYO6SANE3YI37L}

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	2026-07-04T16:16:26.847300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

502a628be0785cc361de901a4de11bfadb5da25f45dd8ed46b6b53db56ed05f7

Aliases

arxiv: quant-ph/9911035 · arxiv_version: quant-ph/9911035v2 · doi: 10.48550/arxiv.quant-ph/9911035 · pith_short_12: KAVGFC7APBOM · pith_short_16: KAVGFC7APBOMGYO6 · pith_short_8: KAVGFC7A

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/KAVGFC7APBOMGYO6SANE3YI37L \
  | 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: 502a628be0785cc361de901a4de11bfadb5da25f45dd8ed46b6b53db56ed05f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d59debfe51b1c543922b45a21a4d4e6c2aaf17c5644e9a8b0121861ef9c1f548",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-11-09T09:14:00Z",
    "title_canon_sha256": "86beb11a12ac3b99ffd50ba8a1cf2900b469cd07fbd59ac39387f2b8bf336352"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9911035",
    "kind": "arxiv",
    "version": 2
  }
}