Pith Number

pith:GS7SVGEB

pith:2019:GS7SVGEBMQS4E5OPQE2HZPLHXE

not attested not anchored not stored refs pending

Nanophotonic source of broadband quadrature squeezing

Alberto Politi, Robert Cernansky

arxiv:1904.07283 v1 · 2019-04-15 · 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{GS7SVGEBMQS4E5OPQE2HZPLHXE}

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	2026-05-17T23:48:29.084792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34bf2a98816425c275cf81347cbd67b9202bc17ff933e7644a41362a91fb87f3

Aliases

arxiv: 1904.07283 · arxiv_version: 1904.07283v1 · doi: 10.48550/arxiv.1904.07283 · pith_short_12: GS7SVGEBMQS4 · pith_short_16: GS7SVGEBMQS4E5OP · pith_short_8: GS7SVGEB

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/GS7SVGEBMQS4E5OPQE2HZPLHXE \
  | 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: 34bf2a98816425c275cf81347cbd67b9202bc17ff933e7644a41362a91fb87f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "094d073b99de2c397e298014ec78737fd6a085accb22158e55e326f92736486f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-04-15T18:39:44Z",
    "title_canon_sha256": "39dfc7c3075673f7645ffa58fa4587765ba6e94e0d13893f8ff0642166334070"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07283",
    "kind": "arxiv",
    "version": 1
  }
}