Pith Number

pith:2KXN2ZQU

pith:2018:2KXN2ZQUXT7IG4SAPZV2ARVRRK

not attested not anchored not stored refs pending

Twin-field Quantum Key Distribution without Phase Post-Selection

Chaohan Cui, Feng-yu Lu, Guang-Can Guo, Rong Wang, Shuang Wang, Wei Chen, Zheng-Fu Han, Zhen-Qiang Yin

arxiv:1807.02334 v3 · 2018-07-06 · 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{2KXN2ZQUXT7IG4SAPZV2ARVRRK}

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	2026-05-17T23:50:42.668146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2aedd6614bcfe8372407e6ba046b18a8c17fa21f19c97378d3a39f63cce6ef6

Aliases

arxiv: 1807.02334 · arxiv_version: 1807.02334v3 · doi: 10.48550/arxiv.1807.02334 · pith_short_12: 2KXN2ZQUXT7I · pith_short_16: 2KXN2ZQUXT7IG4SA · pith_short_8: 2KXN2ZQU

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/2KXN2ZQUXT7IG4SAPZV2ARVRRK \
  | 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: d2aedd6614bcfe8372407e6ba046b18a8c17fa21f19c97378d3a39f63cce6ef6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e3ec7dd9bfd2aa323017f62969bcf78b4994e136f776a6df1e9b3f6627919c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-06T10:06:53Z",
    "title_canon_sha256": "e55fe5b97938267a2a8bfcfa2ab808cbee1122d69172f6895db9ce3c18c719df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02334",
    "kind": "arxiv",
    "version": 3
  }
}