Pith Number

pith:OEFXSJC7

pith:2025:OEFXSJC7H34HHFVJBQS54QTLOH

not attested not anchored not stored refs pending

Programmable Photonic Unitary Processor Enables Parametrized Differentiable Long-Haul Spatial Division Multiplexed Transmission

Akira Kawai, Kohei Ikeda, Kohki Shibahara, Masaya Notomi, Mitsumasa Nakajima, Toshikazu Hashimoto, Yutaka Miyamoto

arxiv:2505.17381 v1 · 2025-05-23 · physics.optics · cs.LG · physics.app-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{OEFXSJC7H34HHFVJBQS54QTLOH}

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	2026-07-05T11:08:25.078439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

710b79245f3ef87396a90c25de426b71d9df5a27da346fae0b8c643946e2628c

Aliases

arxiv: 2505.17381 · arxiv_version: 2505.17381v1 · doi: 10.48550/arxiv.2505.17381 · pith_short_12: OEFXSJC7H34H · pith_short_16: OEFXSJC7H34HHFVJ · pith_short_8: OEFXSJC7

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/OEFXSJC7H34HHFVJBQS54QTLOH \
  | 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: 710b79245f3ef87396a90c25de426b71d9df5a27da346fae0b8c643946e2628c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8f78f71a86a28ea6b8039632624905213d1100b05f78af358868d935826a166",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-05-23T01:35:41Z",
    "title_canon_sha256": "60499281c663c4ff1d8f8ce6dd53533144ec3c33c7c9488f35cf9d8b184e28e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17381",
    "kind": "arxiv",
    "version": 1
  }
}