Pith Number

pith:KVZYJUPP

pith:2025:KVZYJUPPIXBZDAOUN6CXZ2ORMF

not attested not anchored not stored refs pending

Highly nondegenerate polarization-entangled photon pairs produced through noncritical phasematching in single-domain KTiOPO$_4$

Alexander Ling, Diane Prato, Jia Boon Chin

arxiv:2502.18752 v1 · 2025-02-26 · 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{KVZYJUPPIXBZDAOUN6CXZ2ORMF}

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	2026-05-29T01:04:52.135764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

557384d1ef45c39181d46f857ce9d16170b180fd88107d951090827ce393849e

Aliases

arxiv: 2502.18752 · arxiv_version: 2502.18752v1 · doi: 10.48550/arxiv.2502.18752 · pith_short_12: KVZYJUPPIXBZ · pith_short_16: KVZYJUPPIXBZDAOU · pith_short_8: KVZYJUPP

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/KVZYJUPPIXBZDAOUN6CXZ2ORMF \
  | 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: 557384d1ef45c39181d46f857ce9d16170b180fd88107d951090827ce393849e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40e0ad14bc0c36bea0ddeb9ee485dde33a2a27e5c0ab2658627d1e735a378fe4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-02-26T02:09:13Z",
    "title_canon_sha256": "07ba28119eaa4c90c4d238a8c87b58d6a4ddbf5e9fee2e51957c92937000b8c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.18752",
    "kind": "arxiv",
    "version": 1
  }
}