Pith Number

pith:PSF7VY4A

pith:2025:PSF7VY4AWJRVXF2YHB6PTWTKOT

not attested not anchored not stored refs pending

Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides

Christine Silberhorn, Christof Eigner, Harald Herrmann, Nina Amelie Lange, Philipp Mues, Sebastian Lengeling, Tim J. Bartley, Viktor Quiring, Werner Ridder

arxiv:2509.02392 v1 · 2025-09-02 · 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{PSF7VY4AWJRVXF2YHB6PTWTKOT}

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	2026-07-05T12:03:37.677398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c8bfae380b2635b9758387cf9da6a74facd02e232356fc82ec8481aa6bce837

Aliases

arxiv: 2509.02392 · arxiv_version: 2509.02392v1 · doi: 10.48550/arxiv.2509.02392 · pith_short_12: PSF7VY4AWJRV · pith_short_16: PSF7VY4AWJRVXF2Y · pith_short_8: PSF7VY4A

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/PSF7VY4AWJRVXF2YHB6PTWTKOT \
  | 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: 7c8bfae380b2635b9758387cf9da6a74facd02e232356fc82ec8481aa6bce837

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c99728df594298f18cdbd2448ac79d9875354968674a0c0b0fdf6b6e550fdec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-09-02T14:57:18Z",
    "title_canon_sha256": "83f7657ef92008f68833418c38dea15ec81a4d7ea25a72f0ab9a3007fd249ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.02392",
    "kind": "arxiv",
    "version": 1
  }
}