Pith Number

pith:2MFOOQNK

pith:2025:2MFOOQNK4EL54T6BO7NRLYJZJR

not attested not anchored not stored refs pending

Enhanced photon-pair generation from a van der Waals metasurface

Andrey A. Sukhorukov, Frank Setzpfandt, Hao Qin, Jinyong Ma, Maximilian Weissflog, Mudassar Nauman, Saniya Shinde, Shaun Lung, Shuyao Qiu, Sina Saravi, Tongmiao Fan, Wenkai Yang, Yilin Tang, Yuerui Lu

arxiv:2507.18994 v1 · 2025-07-25 · physics.optics · quant-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{2MFOOQNK4EL54T6BO7NRLYJZJR}

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	2026-07-05T11:53:49.447520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d30ae741aae117de4fc177db15e1394c55d92b4e00ab6dfd67d5caca700cbb4f

Aliases

arxiv: 2507.18994 · arxiv_version: 2507.18994v1 · doi: 10.48550/arxiv.2507.18994 · pith_short_12: 2MFOOQNK4EL5 · pith_short_16: 2MFOOQNK4EL54T6B · pith_short_8: 2MFOOQNK

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/2MFOOQNK4EL54T6BO7NRLYJZJR \
  | 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: d30ae741aae117de4fc177db15e1394c55d92b4e00ab6dfd67d5caca700cbb4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02f9607f8e99533da73c70cc924ab178335390d6eed1a4c416762097d326a5b4",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-07-25T06:45:33Z",
    "title_canon_sha256": "b06688b6272960927b88034c1d91b82cd7f2f990112a4e2ee4c77c1daf4f0517"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18994",
    "kind": "arxiv",
    "version": 1
  }
}