Pith Number

pith:NJB5PQAX

pith:2012:NJB5PQAXM6WAF56Z35TIJDYNQK

not attested not anchored not stored refs pending

Optimal multipartite entanglement concentration of electron-spin states based on charge detection and projection measurements

Bao-Cang Ren, Fu-Fu Du, Fu-Guo Deng, Ming Hua, Tie-Jun Wang

arxiv:1202.2163 v1 · 2012-02-10 · 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{NJB5PQAXM6WAF56Z35TIJDYNQK}

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	2026-05-18T02:55:50.098438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a43d7c01767ac02f7d9df66848f0d829fabb8c807b617235cd6061dd52e55ce

Aliases

arxiv: 1202.2163 · arxiv_version: 1202.2163v1 · doi: 10.48550/arxiv.1202.2163 · pith_short_12: NJB5PQAXM6WA · pith_short_16: NJB5PQAXM6WAF56Z · pith_short_8: NJB5PQAX

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/NJB5PQAXM6WAF56Z35TIJDYNQK \
  | 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: 6a43d7c01767ac02f7d9df66848f0d829fabb8c807b617235cd6061dd52e55ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46c1109f975ab54bd1662410e7923e70083302fac660d1784997889a4a4e5842",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-02-10T00:42:08Z",
    "title_canon_sha256": "178fd64d78f9400745af0df88ef71326f11671613f0b457572f0eb0ea242a0e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2163",
    "kind": "arxiv",
    "version": 1
  }
}