Pith Number

pith:DL7ME5ET

pith:2006:DL7ME5ETLEZ3NQCVDU5NT3VENT

not attested not anchored not stored refs pending

Entanglement in the above-threshold optical parametric oscillator

Alessandro S. Villar, Antonio Z. Khoury, Kaled Dechoum, Katiuscia N. Cassemiro, Marcelo Martinelli, Paulo Nussenzveig

arxiv:quant-ph/0610208 v1 · 2006-10-24 · 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{DL7ME5ETLEZ3NQCVDU5NT3VENT}

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	2026-05-18T01:37:53.989046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1afec274935933b6c0551d3ad9eea46ce3cbdb7b353a7960e96e900ba2e8c22d

Aliases

arxiv: quant-ph/0610208 · arxiv_version: quant-ph/0610208v1 · doi: 10.48550/arxiv.quant-ph/0610208 · pith_short_12: DL7ME5ETLEZ3 · pith_short_16: DL7ME5ETLEZ3NQCV · pith_short_8: DL7ME5ET

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/DL7ME5ETLEZ3NQCVDU5NT3VENT \
  | 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: 1afec274935933b6c0551d3ad9eea46ce3cbdb7b353a7960e96e900ba2e8c22d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74e4966e0c929acb8bc3bda2f22b27acdadf75dfb21532aa30dd2e4a10606d90",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-10-24T15:31:09Z",
    "title_canon_sha256": "ad655020d9676fa1e56eb58fd92fbc868318836f9855ee16b656bb5302657fc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0610208",
    "kind": "arxiv",
    "version": 1
  }
}