Pith Number

pith:ZQBWKRKO

pith:2018:ZQBWKRKOLEOYNRP37FN5ARKHW6

not attested not anchored not stored refs pending

Quantifying quantumness of correlations using Gaussian R\'enyi-2 entropy in optomechanical interfaces

Jamal El Qars, Mohammed Daoud, Rachid Ahl Laamara

arxiv:1806.10471 v1 · 2018-06-27 · 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{ZQBWKRKOLEOYNRP37FN5ARKHW6}

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	2026-05-18T00:12:12.313942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc0365454e591d86c5fbf95bd04547b79817b0be7aec8fa825dd625bbcc8db18

Aliases

arxiv: 1806.10471 · arxiv_version: 1806.10471v1 · doi: 10.48550/arxiv.1806.10471 · pith_short_12: ZQBWKRKOLEOY · pith_short_16: ZQBWKRKOLEOYNRP3 · pith_short_8: ZQBWKRKO

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/ZQBWKRKOLEOYNRP37FN5ARKHW6 \
  | 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: cc0365454e591d86c5fbf95bd04547b79817b0be7aec8fa825dd625bbcc8db18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67d78035706d31c6278fd8a2aeb02702c70a98a8b7ea012944fdbeb93334ba28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-06-27T13:26:28Z",
    "title_canon_sha256": "98d3c878b760114161e08554897edf5a48fd01a822072ec13f4eeee9749410aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10471",
    "kind": "arxiv",
    "version": 1
  }
}