Pith Number

pith:KIAHLOS3

pith:2021:KIAHLOS3M65KYMA57JDNWFTFQM

not attested not anchored not stored refs pending

Twin-Field Quantum Key Distribution over 511 km Optical Fiber Linking two Distant Metropolitans

Chi Zhang, Cong Jiang, Fei Zhou, Hai-Feng Jiang, Hao Li, Hui Liu, Jian-Wei Pan, Jiu-Peng Chen, Li-Xing You, Qiang Zhang, Shi-Zhao Ma, Teng-Yun Chen, Wei-Jun Zhang, Xiang-Bin Wang, Xiao-Long Hu, Yang Liu, Yu-Huai Li, Zhen Wang, Zhi-Yong Han

arxiv:2102.00433 v1 · 2021-01-31 · 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{KIAHLOS3M65KYMA57JDNWFTFQM}

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	2026-07-05T03:10:27.955513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

520075ba5b67baac301dfa46db1665833a45699519317f1108854718caf4f307

Aliases

arxiv: 2102.00433 · arxiv_version: 2102.00433v1 · doi: 10.48550/arxiv.2102.00433 · pith_short_12: KIAHLOS3M65K · pith_short_16: KIAHLOS3M65KYMA5 · pith_short_8: KIAHLOS3

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/KIAHLOS3M65KYMA57JDNWFTFQM \
  | 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: 520075ba5b67baac301dfa46db1665833a45699519317f1108854718caf4f307

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15b6839df4e0e09ea3170d73ce1b818b58e1b704f65da1297102716e35b6c686",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-01-31T11:25:00Z",
    "title_canon_sha256": "d01737082f1897d685b3c6e60e40a29bfcf9075dbe28916b4d5a125d967d75a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.00433",
    "kind": "arxiv",
    "version": 1
  }
}