Pith Number

pith:RAYLWTHR

pith:2025:RAYLWTHRUU647LB3MFIT365SEH

not attested not anchored not stored refs pending

Large-scale artificial intelligence with 41 million nanophotonic neurons on a metasurface

Bhavin J. Shastri, Chaoran Huang, Chester Shu, Dongliang Wang, Jianmin Xiong, Meirui Jiang, Mingcheng Luo, Nansen Zhou, Qi Dou, Renjie Zhou, Wenfei Guo

arxiv:2504.20416 v1 · 2025-04-29 · 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{RAYLWTHRUU647LB3MFIT365SEH}

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	2026-07-05T10:55:42.118499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8830bb4cf1a53dcfac3b61513dfbb221dcb14687001cceb82619f780c6a920f2

Aliases

arxiv: 2504.20416 · arxiv_version: 2504.20416v1 · doi: 10.48550/arxiv.2504.20416 · pith_short_12: RAYLWTHRUU64 · pith_short_16: RAYLWTHRUU647LB3 · pith_short_8: RAYLWTHR

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/RAYLWTHRUU647LB3MFIT365SEH \
  | 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: 8830bb4cf1a53dcfac3b61513dfbb221dcb14687001cceb82619f780c6a920f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38c10b629e075458aa4c0a84bdb3a87c180579f48fcc871fdb56df71384c8366",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-04-29T04:27:35Z",
    "title_canon_sha256": "8952bf3c3762ceef78dfe15471b35d5b99ada821519ce1ea98f719c840301cc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20416",
    "kind": "arxiv",
    "version": 1
  }
}