Pith Number

pith:GG53J74S

pith:2018:GG53J74SEHZ2KKTO3V6G2TXVYA

not attested not anchored not stored refs pending

Secure quantum key distribution over 421 km of optical fiber

Alberto Boaron, Anthony Martin, C\'edric Vulliez, Claire Autebert, Daniel Nolan, Davide Rusca, F\'elix Bussi\`eres, Ga\"etan Gras, Gianluca Boso, Hugo Zbinden, Matthieu Perrenoud, Ming-Jun Li, Misael Caloz

arxiv:1807.03222 v1 · 2018-07-09 · 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{GG53J74SEHZ2KKTO3V6G2TXVYA}

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	2026-05-18T00:00:52.339328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31bbb4ff9221f3a52a6edd7c6d4ef5c01806d2f03175e4de42e95e7ce755f74c

Aliases

arxiv: 1807.03222 · arxiv_version: 1807.03222v1 · doi: 10.48550/arxiv.1807.03222 · pith_short_12: GG53J74SEHZ2 · pith_short_16: GG53J74SEHZ2KKTO · pith_short_8: GG53J74S

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/GG53J74SEHZ2KKTO3V6G2TXVYA \
  | 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: 31bbb4ff9221f3a52a6edd7c6d4ef5c01806d2f03175e4de42e95e7ce755f74c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "492dafd1fee84a1b7f6c2e6f59fc959eefb6f935d67241b64e3620d579575344",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-09T15:18:45Z",
    "title_canon_sha256": "23496a9b225b035fb18f02d46ee8eaf8ec5f4a6dd83848a119aca51b9e1d08f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03222",
    "kind": "arxiv",
    "version": 1
  }
}