Pith Number

pith:QAM7MHAE

pith:2012:QAM7MHAERORT3BJWW3XPP3FGCT

not attested not anchored not stored refs pending

Four-qubit entangled symmetric states with positive partial transpositions

J. Samsonowicz, J. Tura, M. Ku\'s, M. Lewenstein, P. Hyllus, R. Augusiak

arxiv:1203.3711 v3 · 2012-03-16 · 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{QAM7MHAERORT3BJWW3XPP3FGCT}

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	2026-05-18T01:58:06.646868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8019f61c048ba33d8536b6eef7eca614de7b91c543465105079de527a3f33178

Aliases

arxiv: 1203.3711 · arxiv_version: 1203.3711v3 · doi: 10.48550/arxiv.1203.3711 · pith_short_12: QAM7MHAERORT · pith_short_16: QAM7MHAERORT3BJW · pith_short_8: QAM7MHAE

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/QAM7MHAERORT3BJWW3XPP3FGCT \
  | 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: 8019f61c048ba33d8536b6eef7eca614de7b91c543465105079de527a3f33178

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "673b1291707eee01db61d6b7f5daed3e1419e4e7edc800d6ef369035f173347d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-03-16T14:09:53Z",
    "title_canon_sha256": "3977e5e1d75ae52dedc70683a458440a56a13c131ff50eb9ed7d59cec27c22ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3711",
    "kind": "arxiv",
    "version": 3
  }
}