Pith Number

pith:EKF27J7L

pith:2025:EKF27J7LLR6FIHP3H57JWEGJKW

not attested not anchored not stored refs pending

Solving Distance-Based Optimization Problems Using Optical Hardware

Guangyao Li, Natalia G. Berloff, Richard Zhipeng Wang

arxiv:2507.11378 v1 · 2025-07-15 · physics.optics · cond-mat.dis-nn · cond-mat.other

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKF27J7LLR6FIHP3H57JWEGJKW}

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	2026-07-05T11:37:38.141491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

228bafa7eb5c7c541dfb3f7e9b10c95584e64a740d6687d36677ad621d770727

Aliases

arxiv: 2507.11378 · arxiv_version: 2507.11378v1 · doi: 10.48550/arxiv.2507.11378 · pith_short_12: EKF27J7LLR6F · pith_short_16: EKF27J7LLR6FIHP3 · pith_short_8: EKF27J7L

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/EKF27J7LLR6FIHP3H57JWEGJKW \
  | 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: 228bafa7eb5c7c541dfb3f7e9b10c95584e64a740d6687d36677ad621d770727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab4c8f4bbdb0b6259159bf957c8ac06276782aa8f9ddf5d286085acd2f06e435",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cond-mat.other"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-07-15T14:49:39Z",
    "title_canon_sha256": "ae2f34fb6e1b1a8d8c8909d076f1e5d6dff4df0dc007dd86d365bf8966fcf508"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.11378",
    "kind": "arxiv",
    "version": 1
  }
}