Pith Number

pith:FPXS6FDC

pith:2015:FPXS6FDCU6IZYZRGQH5INZBYK7

not attested not anchored not stored refs pending

Key Rate of the B92 Quantum Key Distribution Protocol with Finite Qubits

Hiroaki Sasaki, Ryutaroh Matsumoto, Tomohiko Uyematsu

arxiv:1504.05628 v1 · 2015-04-22 · quant-ph · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPXS6FDCU6IZYZRGQH5INZBYK7}

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	2026-05-18T00:58:04.467627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bef2f1462a7919c662681fa86e43857c593ed15f222a0122c7ad68b9e583916

Aliases

arxiv: 1504.05628 · arxiv_version: 1504.05628v1 · doi: 10.48550/arxiv.1504.05628 · pith_short_12: FPXS6FDCU6IZ · pith_short_16: FPXS6FDCU6IZYZRG · pith_short_8: FPXS6FDC

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/FPXS6FDCU6IZYZRGQH5INZBYK7 \
  | 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: 2bef2f1462a7919c662681fa86e43857c593ed15f222a0122c7ad68b9e583916

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "132d5d642235328f7beb5492e415a6c0cc75f69d8fdc8d87c70ef32c274bd57d",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-22T01:20:37Z",
    "title_canon_sha256": "ee7d00823ba73b39c6152fa69d20bac096e0891fd3e8b843d482f52772b46ec6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05628",
    "kind": "arxiv",
    "version": 1
  }
}