Pith Number

pith:3PGX7NWS

pith:2021:3PGX7NWSOCUMVXCWNJZWIIWOK7

not attested not anchored not stored refs pending

Geometric Discord for Multi-qubit Systems

Bin Hu, Bo Li, Chen-Lu Zhu, Shao-Ming Fei, Zhi-Xi Wang

arxiv:2104.12344 v5 · 2021-04-26 · 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{3PGX7NWSOCUMVXCWNJZWIIWOK7}

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.

Cited by

1 paper in Pith

Quantum discord of mixed states under noisy channels in the curved spacetime

Receipt and verification

First computed	2026-07-05T02:53:57.232397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbcd7fb6d270a8cadc566a736422ce57d542f640c5106bd507a2156d3ef05d4f

Aliases

arxiv: 2104.12344 · arxiv_version: 2104.12344v5 · doi: 10.48550/arxiv.2104.12344 · pith_short_12: 3PGX7NWSOCUM · pith_short_16: 3PGX7NWSOCUMVXCW · pith_short_8: 3PGX7NWS

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/3PGX7NWSOCUMVXCWNJZWIIWOK7 \
  | 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: dbcd7fb6d270a8cadc566a736422ce57d542f640c5106bd507a2156d3ef05d4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c159faf1ec41c686ccdb50087767b822182c40c96ae7042967d8fb619f8d553d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-04-26T04:38:05Z",
    "title_canon_sha256": "632b3b93364666f837af0936c3f63893589d2bcb702f957b75fb72f136a7cf2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.12344",
    "kind": "arxiv",
    "version": 5
  }
}