Pith Number

pith:FQL7VCSK

pith:2017:FQL7VCSKO4T2PYIMPMN7MJTOCF

not attested not anchored not stored refs pending

Long-distance quantum key distribution secure against coherent attacks

Alan Plews, Andrew J. Shields, Andrew W. Sharpe, Bernd Fr\"ohlich, James F. Dynes, Lucian C. Comandar, Marco Lucamarini, Winci W.-S. Tam, Zhiliang Yuan

arxiv:1701.07252 v1 · 2017-01-25 · 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{FQL7VCSKO4T2PYIMPMN7MJTOCF}

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	2026-05-18T00:52:07.036747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c17fa8a4a7727a7e10c7b1bf6266e1165b6e259b3571ed3b497a30f8ba7473a

Aliases

arxiv: 1701.07252 · arxiv_version: 1701.07252v1 · doi: 10.48550/arxiv.1701.07252 · pith_short_12: FQL7VCSKO4T2 · pith_short_16: FQL7VCSKO4T2PYIM · pith_short_8: FQL7VCSK

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/FQL7VCSKO4T2PYIMPMN7MJTOCF \
  | 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: 2c17fa8a4a7727a7e10c7b1bf6266e1165b6e259b3571ed3b497a30f8ba7473a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c228260102ea37dbcba658cd1386097e6b0523437408315b92fa0f4029732125",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-25T10:39:48Z",
    "title_canon_sha256": "cbfb64989ba09eb3d03325613b903517198eef1d9d0dc63048a7ddb8b877f5a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07252",
    "kind": "arxiv",
    "version": 1
  }
}