Pith Number

pith:OQUQ6FRI

pith:2015:OQUQ6FRI7N2GXP3DWVFPMKXZXT

not attested not anchored not stored refs pending

Entanglement measure and quantum violation of Bell-type inequality for a family of four-qubit entangled states

Dong Ding, Fengli Yan, Ting Gao, Yingqiu He

arxiv:1511.08954 v1 · 2015-11-29 · 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{OQUQ6FRI7N2GXP3DWVFPMKXZXT}

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	2026-05-18T00:43:03.205151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74290f1628fb746bbf63b54af62af9bcf27c592a7180e246d89a15541d6674fa

Aliases

arxiv: 1511.08954 · arxiv_version: 1511.08954v1 · doi: 10.48550/arxiv.1511.08954 · pith_short_12: OQUQ6FRI7N2G · pith_short_16: OQUQ6FRI7N2GXP3D · pith_short_8: OQUQ6FRI

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/OQUQ6FRI7N2GXP3DWVFPMKXZXT \
  | 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: 74290f1628fb746bbf63b54af62af9bcf27c592a7180e246d89a15541d6674fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b619e95b9d082d9365ad221be7f3383e527b1d55c2190f29f0a1ad8c56cd837c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-11-29T01:35:15Z",
    "title_canon_sha256": "7414a526d6d15a19f03d7bde315b0bbb6d2400967e2cf85cb437bb977536d55f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.08954",
    "kind": "arxiv",
    "version": 1
  }
}