Pith Number

pith:VMPIY4QR

pith:2010:VMPIY4QRF4ZGTGE2PQVABNGALS

not attested not anchored not stored refs pending

Optimal Detection of Entanglement in GHZ States

Alastair Kay

arxiv:1006.5197 v3 · 2010-06-27 · 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{VMPIY4QRF4ZGTGE2PQVABNGALS}

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

Estimating the best separable approximation of non-pure spin-squeezed states

Receipt and verification

First computed	2026-05-18T04:28:09.708101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab1e8c72112f3269989a7c2a00b4c05cad8a8bbaceed1a56ee1cbdf934d079bf

Aliases

arxiv: 1006.5197 · arxiv_version: 1006.5197v3 · doi: 10.48550/arxiv.1006.5197 · pith_short_12: VMPIY4QRF4ZG · pith_short_16: VMPIY4QRF4ZGTGE2 · pith_short_8: VMPIY4QR

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/VMPIY4QRF4ZGTGE2PQVABNGALS \
  | 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: ab1e8c72112f3269989a7c2a00b4c05cad8a8bbaceed1a56ee1cbdf934d079bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d038c62325acde8779240bac76defbd97bdad4356b6935081d9620e127959abf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-06-27T10:56:08Z",
    "title_canon_sha256": "bee68afee19eb1942bd92ce0e28940a106d98d641b17247a6dc74b3bce2ee3f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.5197",
    "kind": "arxiv",
    "version": 3
  }
}