Pith Number

pith:54NDOUDO

pith:2014:54NDOUDOP2MICIMAAYFFWEVLV7

not attested not anchored not stored refs pending

Extremal states for photon number and quadratures as gauges for nonclassicality

G. Leuchs, J. Rehacek, L. L. Sanchez-Soto, P. de la Hoz, Z. Hradil

arxiv:1412.5421 v1 · 2014-12-17 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54NDOUDOP2MICIMAAYFFWEVLV7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:04:07.846507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef1a37506e7e98812180060a5b12abafcdb89436dbe0b1e69f03233abc686dbc

Aliases

arxiv: 1412.5421 · arxiv_version: 1412.5421v1 · doi: 10.48550/arxiv.1412.5421 · pith_short_12: 54NDOUDOP2MI · pith_short_16: 54NDOUDOP2MICIMA · pith_short_8: 54NDOUDO

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/54NDOUDOP2MICIMAAYFFWEVLV7 \
  | 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: ef1a37506e7e98812180060a5b12abafcdb89436dbe0b1e69f03233abc686dbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71c03c230697047fe02ec80a3d6389b1d3c127349877caeea091104f42204eb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-12-17T15:01:05Z",
    "title_canon_sha256": "9da8d051e51dbe3fcce4562cb0a6d86666af985426d103a44d5d05bf7ec683fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5421",
    "kind": "arxiv",
    "version": 1
  }
}