Pith Number

pith:DUERLDO6

pith:2012:DUERLDO6SILXN4RD2L7EGEAKLV

not attested not anchored not stored refs pending

Mixedness and entanglement for two-mode Gaussian states

K. M. Fonseca Romero, L. A. M. Souza, M. C. Nemes, R. C. Drumond

arxiv:1208.4988 v1 · 2012-08-24 · 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{DUERLDO6SILXN4RD2L7EGEAKLV}

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	2026-05-18T02:21:00.388973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d09158dde921776f223d2fe43100a5d7de92b9da6186d76f9f0a55b3a388545

Aliases

arxiv: 1208.4988 · arxiv_version: 1208.4988v1 · doi: 10.48550/arxiv.1208.4988 · pith_short_12: DUERLDO6SILX · pith_short_16: DUERLDO6SILXN4RD · pith_short_8: DUERLDO6

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/DUERLDO6SILXN4RD2L7EGEAKLV \
  | 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: 1d09158dde921776f223d2fe43100a5d7de92b9da6186d76f9f0a55b3a388545

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c989d762ea2bba5ba2b6ca0d2db4dbc02891cfb18da1020dd57258d95c10b937",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-24T14:20:57Z",
    "title_canon_sha256": "bbcaa8d0a1073c77171dc2920a40659c153927e4ba8c0d927b5d38a1654e1c29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4988",
    "kind": "arxiv",
    "version": 1
  }
}