Pith Number

pith:NPL4Y6MY

pith:2016:NPL4Y6MY5CXR43P4U2X6DY2MAC

not attested not anchored not stored refs pending

Spatial entanglement of nonvacuum Gaussian states

Andrzej Dragan, Filip Kia{\l}ka, Mehdi Ahmadi

arxiv:1603.04890 v2 · 2016-03-15 · 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{NPL4Y6MY5CXR43P4U2X6DY2MAC}

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	2026-05-18T00:51:25.765595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd7cc7998e8af1e6dfca6afe1e34c00a064faebe2a96c0c9d0867409bbc5e86

Aliases

arxiv: 1603.04890 · arxiv_version: 1603.04890v2 · doi: 10.48550/arxiv.1603.04890 · pith_short_12: NPL4Y6MY5CXR · pith_short_16: NPL4Y6MY5CXR43P4 · pith_short_8: NPL4Y6MY

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/NPL4Y6MY5CXR43P4U2X6DY2MAC \
  | 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: 6bd7cc7998e8af1e6dfca6afe1e34c00a064faebe2a96c0c9d0867409bbc5e86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21069af2340bada998e65b10bba2c7a81f17935adeb07ddf26cd07dd7f026c74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-03-15T21:22:49Z",
    "title_canon_sha256": "230ae02c2d4fa0e7c95674a86047fd9ad1e03a3be062130e7f5a9ccfdf4715b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04890",
    "kind": "arxiv",
    "version": 2
  }
}