Pith Number

pith:PPITTHQW

pith:2018:PPITTHQWLHHD6SNFJVOVLEKLS5

not attested not anchored not stored refs pending

Characterizing the multipartite continuous-variable entanglement structure from squeezing coefficients and the Fisher information

Augusto Smerzi, Dongmei Han, Kunchi Peng, Manuel Gessner, Weidong Li, Xiaolong Su, Xiaowei Deng, Zhihong Ren, Zhongzhong Qin

arxiv:1804.08296 v2 · 2018-04-23 · 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{PPITTHQWLHHD6SNFJVOVLEKLS5}

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	2026-05-17T23:55:20.925709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bd1399e1659ce3f49a54d5d55914b97569c931721a7adb3ac557560f094ed8f

Aliases

arxiv: 1804.08296 · arxiv_version: 1804.08296v2 · doi: 10.48550/arxiv.1804.08296 · pith_short_12: PPITTHQWLHHD · pith_short_16: PPITTHQWLHHD6SNF · pith_short_8: PPITTHQW

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/PPITTHQWLHHD6SNFJVOVLEKLS5 \
  | 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: 7bd1399e1659ce3f49a54d5d55914b97569c931721a7adb3ac557560f094ed8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36780e88444e0a2de7c17783b58f3501e647bdd6020063a1c1dbe59832d06379",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-04-23T09:04:48Z",
    "title_canon_sha256": "765c48ebd451202ada54e43b3a9a861b2d8c771deac883c6964c292ed421dd59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08296",
    "kind": "arxiv",
    "version": 2
  }
}