Pith Number

pith:DEMX4PYL

pith:2012:DEMX4PYLWABTQATIUFFIL4NTKS

not attested not anchored not stored refs pending

Optimal entanglement concentration for quantum dot and optical microcavities systems

Lan Zhou, Lei Wang, Sheng-Mei Zhao, Yu-Bo Sheng

arxiv:1207.5196 v1 · 2012-07-22 · 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{DEMX4PYLWABTQATIUFFIL4NTKS}

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	2026-05-18T03:50:24.191894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19197e3f0bb003380268a14a85f1b35496b0267324fe9836220b956887769f80

Aliases

arxiv: 1207.5196 · arxiv_version: 1207.5196v1 · doi: 10.48550/arxiv.1207.5196 · pith_short_12: DEMX4PYLWABT · pith_short_16: DEMX4PYLWABTQATI · pith_short_8: DEMX4PYL

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/DEMX4PYLWABTQATIUFFIL4NTKS \
  | 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: 19197e3f0bb003380268a14a85f1b35496b0267324fe9836220b956887769f80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5a7f6df9d6df5c00b50220838ee2fbcad3baec87d00e199da398790c4f841d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-22T03:03:34Z",
    "title_canon_sha256": "56de0531ffa966497de9c214f631681a629de7a87e2c461d4c171797c3ae2d51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5196",
    "kind": "arxiv",
    "version": 1
  }
}