Pith Number

pith:H7H3CDZU

pith:2026:H7H3CDZU7D4XVOKZLZ34ULVX76

not attested not anchored not stored refs pending

Frequency-Division Multiplexed CV-QKD System

Donghyeok Lee, Jaehyeok Han, Minseok Ryu, Sunghyun Bae, Syed Assad, Yong-Su Kim

arxiv:2603.20718 v3 · 2026-03-21 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7H3CDZU7D4XVOKZLZ34ULVX76}

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	2026-06-19T16:11:22.307304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fcfb10f34f8f97ab9595e77ca2eb7ffa9aa1875643c06077eaa7ef2c67d6176

Aliases

arxiv: 2603.20718 · arxiv_version: 2603.20718v3 · doi: 10.48550/arxiv.2603.20718 · pith_short_12: H7H3CDZU7D4X · pith_short_16: H7H3CDZU7D4XVOKZ · pith_short_8: H7H3CDZU

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/H7H3CDZU7D4XVOKZLZ34ULVX76 \
  | 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: 3fcfb10f34f8f97ab9595e77ca2eb7ffa9aa1875643c06077eaa7ef2c67d6176

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd4663f68e5c2f1022321318249a74fd44b5e93bec8bc5c21e26653958e08b9",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-03-21T08:54:04Z",
    "title_canon_sha256": "625e6029f2a203adb35353eb27cae956d09f8ab7540859e5796e9a5f01f013a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.20718",
    "kind": "arxiv",
    "version": 3
  }
}