Pith Number

pith:UNDL3KOS

pith:2023:UNDL3KOSDY6XOFF5D5LWVKTGO5

not attested not anchored not stored refs pending

High speed free-space optical communication using standard fiber communication component without optical amplification

Dong Pan, Guilu Long, Hua-Ying Liu, Hua Yu, Pengfei Fan, Peng Xu, Shi-Ning Zhu, Xiang Dong, Xiaohui Tian, Xiaoyi Liu, Yao Zhang, Zhenda Xie, Zhijun Yin

arxiv:2302.14751 v2 · 2023-02-27 · eess.SP · 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{UNDL3KOSDY6XOFF5D5LWVKTGO5}

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	2026-07-05T06:01:17.587365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a346bda9d21e3d7714bd1f576aaa66776210809111bfd8d1e2ddf32d3456a65c

Aliases

arxiv: 2302.14751 · arxiv_version: 2302.14751v2 · doi: 10.48550/arxiv.2302.14751 · pith_short_12: UNDL3KOSDY6X · pith_short_16: UNDL3KOSDY6XOFF5 · pith_short_8: UNDL3KOS

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/UNDL3KOSDY6XOFF5D5LWVKTGO5 \
  | 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: a346bda9d21e3d7714bd1f576aaa66776210809111bfd8d1e2ddf32d3456a65c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46b573b1de9dfdcc1fecbf0f7ded89cfb05e89cba971d1056e93d8b71cafdf15",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2023-02-27T09:48:42Z",
    "title_canon_sha256": "2b0988162114b945b174b452db3bec959324c380ca19db86c0d619b80caa1991"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.14751",
    "kind": "arxiv",
    "version": 2
  }
}