Pith Number

pith:ZAVSXX44

pith:2019:ZAVSXX44OGBMDIRMJZIXKOS2UN

not attested not anchored not stored refs pending

Heterogeneously integrated, superconducting silicon-photonic platform for measurement-device-independent quantum key distribution

Fangchao Qu, Guanglong He, Labao Zhang, Liangliang Lu, Peiheng Wu, Peiyu Zhang, Qi Chen, Renyou Ge, Shining Zhu, Xiaodong Zheng, Xiao-song Ma, Xinlun Cai, Yanqing Lu

arxiv:1912.09642 v2 · 2019-12-20 · 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{ZAVSXX44OGBMDIRMJZIXKOS2UN}

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	2026-07-05T03:27:24.724624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c82b2bdf9c7182c1a22c4e51753a5aa36939ff818be3e6a9ae59790595a7c13e

Aliases

arxiv: 1912.09642 · arxiv_version: 1912.09642v2 · doi: 10.48550/arxiv.1912.09642 · pith_short_12: ZAVSXX44OGBM · pith_short_16: ZAVSXX44OGBMDIRM · pith_short_8: ZAVSXX44

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/ZAVSXX44OGBMDIRMJZIXKOS2UN \
  | 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: c82b2bdf9c7182c1a22c4e51753a5aa36939ff818be3e6a9ae59790595a7c13e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a5649cee35f227d233e6b6fddb8b3358630feb4f5562c51b3b80f2f9bca43d9",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-12-20T04:54:25Z",
    "title_canon_sha256": "2c2c14affe2d666d1a5844632f33773420e23ac93c75649a7860076f6db9c395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.09642",
    "kind": "arxiv",
    "version": 2
  }
}