Pith Number

pith:QVHVQMDH

pith:2019:QVHVQMDH6EHL7ABCO465L2YCGH

not attested not anchored not stored refs pending

Tools for the Performance Optimization of Single-Photon Quantum Key Distribution

Andr\'e Strittmatter, Jan-Hindrik Schulze, Lucas Rickert, Manuel Gschrey, Martin v. Helversen, Stephan Reitzenstein, Sven Rodt, Timm Kupko, Tobias Heindel

arxiv:1908.02672 v2 · 2019-08-07 · 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{QVHVQMDH6EHL7ABCO465L2YCGH}

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	2026-07-05T00:53:07.176178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

854f583067f10ebf8022773dd5eb0231fdf694f55a613c5fa9999b17ab67f742

Aliases

arxiv: 1908.02672 · arxiv_version: 1908.02672v2 · doi: 10.48550/arxiv.1908.02672 · pith_short_12: QVHVQMDH6EHL · pith_short_16: QVHVQMDH6EHL7ABC · pith_short_8: QVHVQMDH

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/QVHVQMDH6EHL7ABCO465L2YCGH \
  | 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: 854f583067f10ebf8022773dd5eb0231fdf694f55a613c5fa9999b17ab67f742

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28f65fbc4427478b5430f2736e68cabe92e352014db9cfd930417ca18e3fed3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-07T15:07:53Z",
    "title_canon_sha256": "7c4b111ed36f67ac29257ca32b70da94a354d3b79f596054b902dd42a0eb884d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02672",
    "kind": "arxiv",
    "version": 2
  }
}