Pith Number

pith:R5YNUPPZ

pith:2021:R5YNUPPZDWLWXAIQJN5FGNU4DU

not attested not anchored not stored refs pending

Optimal design and performance evaluation of free-space Quantum Key Distribution systems

Alessia Scriminich, Andrea Stanco, Francesco Picciariello, Francesco Vedovato, Giulio Foletto, Giuseppe Vallone, Paolo Villoresi

arxiv:2109.13886 v2 · 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{R5YNUPPZDWLWXAIQJN5FGNU4DU}

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	2026-07-05T05:17:01.361174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f70da3df91d976b81104b7a53369c1d1feb564f54d7350aa0b83ea567cb3e13

Aliases

arxiv: 2109.13886 · arxiv_version: 2109.13886v2 · doi: 10.48550/arxiv.2109.13886 · pith_short_12: R5YNUPPZDWLW · pith_short_16: R5YNUPPZDWLWXAIQ · pith_short_8: R5YNUPPZ

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/R5YNUPPZDWLWXAIQJN5FGNU4DU \
  | 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: 8f70da3df91d976b81104b7a53369c1d1feb564f54d7350aa0b83ea567cb3e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbcc1de7eea78b77506f28834d1a3b96cadde0c06962613fa40db92a0e86ccf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-28T17:28:31Z",
    "title_canon_sha256": "8bc13691f173ca2232a44cecbb55d181c93831a17ee10bfb67ee8aeb8132e710"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13886",
    "kind": "arxiv",
    "version": 2
  }
}