Pith Number

pith:RSTBM2M6

pith:2025:RSTBM2M6J2VRC4EDSB4XMY4VUM

not attested not anchored not stored refs pending

Non-degenerate SPDC photon-pair source for UV-A illumination

Jorge Fuenzalida, Markus Gr\"afe, Marta Gilaberte Basset, Preetisha Goswami, Valerio Flavio Gili

arxiv:2505.13721 v1 · 2025-05-19 · quant-ph · 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{RSTBM2M6J2VRC4EDSB4XMY4VUM}

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	2026-07-05T11:05:50.016966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ca616699e4eab1170839079766395a32911155e0f447199866940188f26eda8

Aliases

arxiv: 2505.13721 · arxiv_version: 2505.13721v1 · doi: 10.48550/arxiv.2505.13721 · pith_short_12: RSTBM2M6J2VR · pith_short_16: RSTBM2M6J2VRC4ED · pith_short_8: RSTBM2M6

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/RSTBM2M6J2VRC4EDSB4XMY4VUM \
  | 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: 8ca616699e4eab1170839079766395a32911155e0f447199866940188f26eda8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0dafac377f4e873039e9668bb3819dcd201d9089720594235266c8cf057c8f7",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-05-19T20:40:41Z",
    "title_canon_sha256": "8fa35ddfea0b82b90f2763a4bd132fb2574aea5b197806efe8b917d8e607e49f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.13721",
    "kind": "arxiv",
    "version": 1
  }
}