Pith Number

pith:A7R3DQEJ

pith:2014:A7R3DQEJIVJQRQYJPJ6VZVR3X6

not attested not anchored not stored refs pending

Quantifying entanglement of a two-qubit system via measurable and invariant moments of its partially transposed density matrix

Adam Miranowicz, Ji\v{r}\'i Beran, Karel Lemr, Karol Bartkiewicz, Micha{\l} Norek

arxiv:1411.7977 v2 · 2014-11-28 · 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{A7R3DQEJIVJQRQYJPJ6VZVR3X6}

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	2026-05-18T02:19:08.072741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07e3b1c089455308c3097a7d5cd63bbf9f32471db8ab8009eaa4b67333aa5610

Aliases

arxiv: 1411.7977 · arxiv_version: 1411.7977v2 · doi: 10.48550/arxiv.1411.7977 · pith_short_12: A7R3DQEJIVJQ · pith_short_16: A7R3DQEJIVJQRQYJ · pith_short_8: A7R3DQEJ

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/A7R3DQEJIVJQRQYJPJ6VZVR3X6 \
  | 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: 07e3b1c089455308c3097a7d5cd63bbf9f32471db8ab8009eaa4b67333aa5610

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7b25dcfb7e9e0b97e6e94acd3178805e35afe5f88fccf5c8de66803557bded6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-11-28T19:07:43Z",
    "title_canon_sha256": "7d1daaa1d11d6ad1c36acd1e9699eeab669f8320dc8ddd7cace2d6b41b26037a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.7977",
    "kind": "arxiv",
    "version": 2
  }
}