Pith Number

pith:2RDDQBC7

pith:2025:2RDDQBC7DQAPHGRL4ZP4DP2A2A

not attested not anchored not stored refs pending

Free-Space Twin-Field Quantum Key Distribution

Cheng-Lin Li, Cheng-Zhi Peng, Cong Jiang, Fei Zhou, Hao-Bin Fu, Hao Li, Jian-Wei Pan, Jian-Yu Guan, Ji-Gang Ren, Jin Lin, Jiu-Peng Chen, Juan Yin, Lixing You, Min-Yan Wang, Qiang Zhang, Qi Shen, Sheng-Kai Liao, Ting Zeng, Xiang-Bin Wang, Xin-Yang Zheng, Yang Li, Yuan Cao, Yu-Huai Li, Zeng-Sen Lin, Zhen Wang

arxiv:2503.17744 v1 · 2025-03-22 · 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{2RDDQBC7DQAPHGRL4ZP4DP2A2A}

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.

Cited by

1 paper in Pith

Analysis of untrusted-node quantum key distribution from a geostationary satellite

Receipt and verification

First computed	2026-07-05T10:37:53.956425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d44638045f1c00f39a2be65fc1bf40d03428160960a8312129fbfd8103b79175

Aliases

arxiv: 2503.17744 · arxiv_version: 2503.17744v1 · doi: 10.48550/arxiv.2503.17744 · pith_short_12: 2RDDQBC7DQAP · pith_short_16: 2RDDQBC7DQAPHGRL · pith_short_8: 2RDDQBC7

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/2RDDQBC7DQAPHGRL4ZP4DP2A2A \
  | 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: d44638045f1c00f39a2be65fc1bf40d03428160960a8312129fbfd8103b79175

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a1bd2552e1c87f75f851fdcae5c65476f340cfb1a3315f6b77df1af65fcd86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-03-22T12:05:07Z",
    "title_canon_sha256": "35260ae2f2ef8d07d4a00c8a45917a60ff2a839e478498cc9adbe17d6ef69557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.17744",
    "kind": "arxiv",
    "version": 1
  }
}