Pith Number

pith:6ZPH76O4

pith:2021:6ZPH76O4BVPGLNHVEJPHT5DYIC

not attested not anchored not stored refs pending

Robust optical frequency transfer in a noisy urban fiber network

Dongjie Wang, Jie Liu, Liang Hu, Qi Zang, Ruifang Dong, Shougang Zhang, Tao Liu, Xiang Zhang, Xue Deng

arxiv:2106.12897 v1 · 2021-06-24 · physics.ins-det · 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{6ZPH76O4BVPGLNHVEJPHT5DYIC}

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	2026-07-05T02:52:07.380155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f65e7ff9dc0d5e65b4f5225e79f478409546acdb6e4adcbe12364eefb37473c8

Aliases

arxiv: 2106.12897 · arxiv_version: 2106.12897v1 · doi: 10.48550/arxiv.2106.12897 · pith_short_12: 6ZPH76O4BVPG · pith_short_16: 6ZPH76O4BVPGLNHV · pith_short_8: 6ZPH76O4

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/6ZPH76O4BVPGLNHVEJPHT5DYIC \
  | 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: f65e7ff9dc0d5e65b4f5225e79f478409546acdb6e4adcbe12364eefb37473c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63f7afc52adf8116493295d0fcd9bb8482a39c6318d81315c4b3035d97b80ea5",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2021-06-24T14:28:56Z",
    "title_canon_sha256": "e1345dcb19fd1a3bc7dc39991fbfaced356354df1192130b61afcfa76cf4e7a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.12897",
    "kind": "arxiv",
    "version": 1
  }
}