Pith Number

pith:NWKUXVOW

pith:2022:NWKUXVOW7Q2QZQHF5BYGSJMTWJ

not attested not anchored not stored refs pending

Quantifying the entanglement of quantum states under the geometry method

Lin Chen, Xian Shi, Yixuan Liang

arxiv:2204.03791 v3 · 2022-04-08 · 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{NWKUXVOW7Q2QZQHF5BYGSJMTWJ}

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	2026-07-05T05:39:50.466867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d954bd5d6fc350cc0e5e870692593b26d602375a373bfebefa87e58ff093ec2

Aliases

arxiv: 2204.03791 · arxiv_version: 2204.03791v3 · doi: 10.48550/arxiv.2204.03791 · pith_short_12: NWKUXVOW7Q2Q · pith_short_16: NWKUXVOW7Q2QZQHF · pith_short_8: NWKUXVOW

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/NWKUXVOW7Q2QZQHF5BYGSJMTWJ \
  | 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: 6d954bd5d6fc350cc0e5e870692593b26d602375a373bfebefa87e58ff093ec2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73ada37a2aae46947dbc86457410fc6c3925d57b50b470531011581df564b82a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-04-08T00:40:49Z",
    "title_canon_sha256": "daad721dedd6be4b2a88a35d95899bae35e288079c68bc849e13bddcd0813289"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.03791",
    "kind": "arxiv",
    "version": 3
  }
}