Pith Number

pith:VZDJ7OPT

pith:2021:VZDJ7OPTRLKGRUWSEFY4JCE5NG

not attested not anchored not stored refs pending

Implementation of field two-way quantum synchronization of distant clocks across a 7 km deployed fiber link

Honglei Quan, Huibo Hong, Mingtao Cao, Ruifang Dong, Runai Quan, Shougang Zhang, Tao Liu, Wenxiang Xue, Wenyu Zhao, Xiao Xiang, Yuting Liu

arxiv:2109.00784 v2 · 2021-09-02 · 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{VZDJ7OPTRLKGRUWSEFY4JCE5NG}

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	2026-07-05T04:11:26.333859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae469fb9f38ad468d2d22171c4889d6990cc54563181d1889c8b494e33782c0b

Aliases

arxiv: 2109.00784 · arxiv_version: 2109.00784v2 · doi: 10.48550/arxiv.2109.00784 · pith_short_12: VZDJ7OPTRLKG · pith_short_16: VZDJ7OPTRLKGRUWS · pith_short_8: VZDJ7OPT

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/VZDJ7OPTRLKGRUWSEFY4JCE5NG \
  | 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: ae469fb9f38ad468d2d22171c4889d6990cc54563181d1889c8b494e33782c0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "421d3961269709955d3dc24dfff661a363f836c0850ebeefbcee960b6d1f798f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-02T08:48:51Z",
    "title_canon_sha256": "de001865ee484da39cfd99a2c3a513941cdbbd1ee09322a21b54565d5de3a8c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00784",
    "kind": "arxiv",
    "version": 2
  }
}