Pith Number

pith:PXTNZY3X

pith:2025:PXTNZY3XEZ7N7QA6BZ3TAXNHBP

not attested not anchored not stored refs pending

Tutorial: A practical guide to the alignment of defocused spatial light modulators for fast diffractive neural networks

Guillaume Noetinger, Romain Fleury, Tim Tuuva

arxiv:2511.09440 v2 · 2025-11-12 · 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{PXTNZY3XEZ7N7QA6BZ3TAXNHBP}

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	2026-05-20T01:05:01.595790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7de6dce377267edfc01e0e77305da70bc5d48b5cd7e7be290df23869c1a7f391

Aliases

arxiv: 2511.09440 · arxiv_version: 2511.09440v2 · doi: 10.48550/arxiv.2511.09440 · pith_short_12: PXTNZY3XEZ7N · pith_short_16: PXTNZY3XEZ7N7QA6 · pith_short_8: PXTNZY3X

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/PXTNZY3XEZ7N7QA6BZ3TAXNHBP \
  | 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: 7de6dce377267edfc01e0e77305da70bc5d48b5cd7e7be290df23869c1a7f391

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db12c827d8694bd8e0ad9686fe3513b26105b9b1fdac6b830dcd08dac0a64f57",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-11-12T15:55:04Z",
    "title_canon_sha256": "3b89cd6e27f568067600ba6f82d4e9b5de5d14ffbbcbd6a41af68dd3f515fea7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.09440",
    "kind": "arxiv",
    "version": 2
  }
}