Pith Number

pith:7KQ2GEUA

pith:2023:7KQ2GEUAEXQEQW4ZKTI2BXKDI7

not attested not anchored not stored refs pending

Quantum Key Distribution over 100 km underwater optical fiber assisted by a Fast-Gated Single-Photon Detector

Alberto Tosi, Alessandro Zavatta, Andr\`e Xuereb, Antoine Petitjean, Claudia De Lazzari, Davide Bacco, Domenico Ribezzo, Enrico Conca, Gianmarco Lemmi, Ilaria Vagniluca, Leif K. Oxenl{\o}we, Mujtaba Zahidy, Tommaso Occhipinti

arxiv:2303.01449 v1 · 2023-03-02 · 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{7KQ2GEUAEXQEQW4ZKTI2BXKDI7}

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	2026-07-05T07:49:30.695528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faa1a3128025e0485b9954d1a0dd4347eaf10ca6b2eda7b00ea90484e9152181

Aliases

arxiv: 2303.01449 · arxiv_version: 2303.01449v1 · doi: 10.48550/arxiv.2303.01449 · pith_short_12: 7KQ2GEUAEXQE · pith_short_16: 7KQ2GEUAEXQEQW4Z · pith_short_8: 7KQ2GEUA

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/7KQ2GEUAEXQEQW4ZKTI2BXKDI7 \
  | 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: faa1a3128025e0485b9954d1a0dd4347eaf10ca6b2eda7b00ea90484e9152181

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d51bf2c491437409613210c7ae25f34d34cd26c4c360ed23b44fb1ec556f7a87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-03-02T18:07:31Z",
    "title_canon_sha256": "f4b669cb1d92062abb706405704744930aac424d72829240cd9a50fea60edfcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.01449",
    "kind": "arxiv",
    "version": 1
  }
}