Pith Number

pith:IT2M7YXQ

pith:2013:IT2M7YXQOV3FNKFKSDGDOYRL3V

not attested not anchored not stored refs pending

Characterization of four-qubit states via Bell inequalities

Hui Zhao, Shao-Ming Fei, Xing-Hua Zhang, Zhi-Xi Wang

arxiv:1307.6656 v1 · 2013-07-25 · 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{IT2M7YXQOV3FNKFKSDGDOYRL3V}

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	2026-05-18T03:17:35.718723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44f4cfe2f0757656a8aa90cc37622bdd5e0cec49db541842d618143ee839a2c5

Aliases

arxiv: 1307.6656 · arxiv_version: 1307.6656v1 · doi: 10.48550/arxiv.1307.6656 · pith_short_12: IT2M7YXQOV3F · pith_short_16: IT2M7YXQOV3FNKFK · pith_short_8: IT2M7YXQ

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/IT2M7YXQOV3FNKFKSDGDOYRL3V \
  | 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: 44f4cfe2f0757656a8aa90cc37622bdd5e0cec49db541842d618143ee839a2c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bde49972cfedf25d4a6d3598da50228c89810d4162df15831ecbc9d6ceaf55c1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-25T08:07:48Z",
    "title_canon_sha256": "f98c038f0aab9d5c56a608d0726e4c05e3de376b49e6848b421c4b96f925b7cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6656",
    "kind": "arxiv",
    "version": 1
  }
}