Pith Number

pith:ND6T3LFY

pith:2018:ND6T3LFY5IMFQAGCBXCJE73OYN

not attested not anchored not stored refs pending

Underwater Quantum Key Distribution in Outdoor Conditions with Twisted Photons

Aazad Abbas, Alicia Sit, Christoph Marquardt, Ebrahim Karimi, Felix Hufnagel, Fr\'ed\'eric Bouchard, Gerd Leuchs, Khabat Heshami, Robert Fickler, Robert W. Boyd, Yingwen Zhang

arxiv:1801.10299 v1 · 2018-01-31 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ND6T3LFY5IMFQAGCBXCJE73OYN}

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	2026-05-18T00:24:41.158505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68fd3dacb8ea185800c20dc4927f6ec349849f5817950e7c81155482a9783ff6

Aliases

arxiv: 1801.10299 · arxiv_version: 1801.10299v1 · doi: 10.48550/arxiv.1801.10299 · pith_short_12: ND6T3LFY5IMF · pith_short_16: ND6T3LFY5IMFQAGC · pith_short_8: ND6T3LFY

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/ND6T3LFY5IMFQAGCBXCJE73OYN \
  | 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: 68fd3dacb8ea185800c20dc4927f6ec349849f5817950e7c81155482a9783ff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0921365dee8e1f9da5e2890c7c25fc5ecc9621ec030fb6677143e1a8d25f0b12",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-01-31T04:49:53Z",
    "title_canon_sha256": "a4418687f057a8162e6e154a805b6f9becc3a343d9a7e74eb188ea5c31a6d023"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.10299",
    "kind": "arxiv",
    "version": 1
  }
}