Pith Number

pith:K2TDQITN

pith:2025:K2TDQITNU45JCF7NHZVEJWUXZC

not attested not anchored not stored refs pending

Metasurface-empowered freely-arrangeable multi-task diffractive neural networks with weighted training

Chongzhao Wu, Haifeng Xu, Jierong Cheng, Jingzhu Shao, Xiangyu Zhao, Yudong Tian, Yuqing Liu

arxiv:2506.18242 v1 · 2025-06-23 · physics.app-ph · 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{K2TDQITNU45JCF7NHZVEJWUXZC}

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	2026-07-05T11:25:31.296728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56a638226da73a9117ed3e6a44da97c8b732b778f72fe32a294c9931b75e995c

Aliases

arxiv: 2506.18242 · arxiv_version: 2506.18242v1 · doi: 10.48550/arxiv.2506.18242 · pith_short_12: K2TDQITNU45J · pith_short_16: K2TDQITNU45JCF7N · pith_short_8: K2TDQITN

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/K2TDQITNU45JCF7NHZVEJWUXZC \
  | 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: 56a638226da73a9117ed3e6a44da97c8b732b778f72fe32a294c9931b75e995c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "811cf91a50615e442fcfe29b11cf875ba69d6650a629a916fed0f50abc74ef1e",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2025-06-23T02:17:43Z",
    "title_canon_sha256": "146ff514cb11dd511e8eb9c0475d98ad3fe8d13b3dad5c8e52e80779f968a09c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.18242",
    "kind": "arxiv",
    "version": 1
  }
}