Pith Number

pith:ZY4WOAGC

pith:2009:ZY4WOAGCG3TIFFAQMO6QXLPGBW

not attested not anchored not stored refs pending

Emission of photon pairs at discontinuities of nonlinearity in spontaneous parametric down-conversion

Antonin Luks, Jan Perina Jr, Ondrej Haderka

arxiv:0910.0418 v1 · 2009-10-02 · 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{ZY4WOAGCG3TIFFAQMO6QXLPGBW}

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	2026-05-18T02:11:34.900962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce396700c236e682941063bd0bade60d8d55127eb03a8ac47c7bee608882c4a2

Aliases

arxiv: 0910.0418 · arxiv_version: 0910.0418v1 · doi: 10.48550/arxiv.0910.0418 · pith_short_12: ZY4WOAGCG3TI · pith_short_16: ZY4WOAGCG3TIFFAQ · pith_short_8: ZY4WOAGC

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/ZY4WOAGCG3TIFFAQMO6QXLPGBW \
  | 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: ce396700c236e682941063bd0bade60d8d55127eb03a8ac47c7bee608882c4a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67a1cb1905d3b70376b2ee59199acdd2a1f39d2ee3f69a1c8546b9f6bab656b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-02T15:28:44Z",
    "title_canon_sha256": "5af057eaf1244ad5543864fc61bee5826e005c5843864ca06b767646dafe18bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0418",
    "kind": "arxiv",
    "version": 1
  }
}