Pith Number

pith:BL2FLNGF

pith:2021:BL2FLNGFCHYQYNSLMXNDSZ6B3B

not attested not anchored not stored refs pending

Deployment-ready quantum key distribution over a classical network infrastructure in Padua

Alessia Scriminich, Andrea Stanco, Costantino Agnesi, Davide Scalcon, Elisa Bazzani, Federico Berra, Francesco B.L. Santagiustina, Francesco Picciariello, Francesco Vedovato, Giulio Foletto, Giuseppe Vallone, Luca Calderaro, Marco Avesani, Matteo Padovan, Paolo Villoresi, Tommaso Bertapelle

arxiv:2109.13558 v1 · 2021-09-28 · 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{BL2FLNGFCHYQYNSLMXNDSZ6B3B}

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	2026-07-05T04:06:45.339330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af455b4c511f10c364b65da3967c1d8604234cf1ad7bb6af114f2a074d1ceee

Aliases

arxiv: 2109.13558 · arxiv_version: 2109.13558v1 · doi: 10.48550/arxiv.2109.13558 · pith_short_12: BL2FLNGFCHYQ · pith_short_16: BL2FLNGFCHYQYNSL · pith_short_8: BL2FLNGF

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/BL2FLNGFCHYQYNSLMXNDSZ6B3B \
  | 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: 0af455b4c511f10c364b65da3967c1d8604234cf1ad7bb6af114f2a074d1ceee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af61cfdb825de798b5918920be987964813cc37ab8d42f2ae5bc2b9c8d60b154",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-28T08:38:47Z",
    "title_canon_sha256": "3bfbc15cc44bc5a46a11c519497042bc80a6d7cf821b169f91006185c40c8607"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13558",
    "kind": "arxiv",
    "version": 1
  }
}