Pith Number

pith:QHQFKYX7

pith:2012:QHQFKYX72NVHGFEELXZD2C3CD3

not attested not anchored not stored refs pending

Parametric wave interaction in quadratic crystal with randomized distribution of ferroelectric domains

Ksawery Kalinowski, Marek \'Swirkowicz, Tadeusz {\L}ukasiewicz, Vito Roppo, Wieslaw Krolikowski, Yan Sheng

arxiv:1202.2349 v2 · 2012-02-10 · 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{QHQFKYX72NVHGFEELXZD2C3CD3}

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	2026-05-18T03:53:31.506405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e05562ffd36a7314845df23d0b621efd34284d7e760adc3aecf33c1d061be0

Aliases

arxiv: 1202.2349 · arxiv_version: 1202.2349v2 · doi: 10.48550/arxiv.1202.2349 · pith_short_12: QHQFKYX72NVH · pith_short_16: QHQFKYX72NVHGFEE · pith_short_8: QHQFKYX7

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/QHQFKYX72NVHGFEELXZD2C3CD3 \
  | 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: 81e05562ffd36a7314845df23d0b621efd34284d7e760adc3aecf33c1d061be0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6744e51a205ab564ccce9f916c45aebb44f2229d62abb33fb2ee4f0ba04bd06d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-02-10T03:59:48Z",
    "title_canon_sha256": "8bc5c8829bb0390b2c25b967a8f531c414b3ebefc5cce4be3e0bbbf515c2acec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2349",
    "kind": "arxiv",
    "version": 2
  }
}